TRANSACTIONS

OF THE

AMERICAIST

ENTOMOLOGICAL SOCIETY.

HALL OF THE ACADEMY OF NATURAL
SCIENCES OF PHILADELPHIA,

LOGAN SQUARE.

PRESS OF

P C. STOCKHAUSEN
PHILADELPHIA.

LIST OK PAPERS.

PAGE.

Banks, Nathan.

On the Oribatoidea of the United States ... 1

New Neuropteroid Insects . . . . . .313

Cockerell, Theo. D. A.

Descriptions of new Hymenoptera . . . 289, 297

Davis, G. C.

A Monograph of the Tribe Bassini . . . .17

Descriptions of a few new Pimplinae . . . .30

Dyar, Harrison G.

On the Larvae of some Nematoid and other Saw-flies,
from the Northern Atlantic States .... 301

Fox, William J.

The Crabroninae of Boreal America . . . .129

Hamilton, John, M.I). *

Catalogue of the Coleoptera of Southwestern Pennsyl¬
vania, with notes and descriptions . . . .317

Horn, Geo. H., M.D.

Studies in Coccinellidae ...... 81

Johnson, Charles W.

A Revision of the Stratiomyia and Odontomyia of N.
America ......... 227

Roberts, Chris. H.

The species of Dineutes of America, North of Mexico . 279
Robertson, Charles.

Notes on Bees, with descriptions of new species. Third

paper . 115

Townsend, C. H. Tyler.

Contributions to the Dipterology of North America 33, 55

NEW AMERICAN ACARINA.

1

TRANSACTIONS

OF THE

AMERICAN ENTOMOLOGICAL SOCIETY.

VOLUME XXII.

ON THE OKI IS ATO IDEA OF THE UNITED STATES.

BY NATHAN BANKS.

The Oribatid mites are easily recognized by the division of the
body into two regions, cephalothorax and abdomen, by the presence
of a seta to a small pore near each posterior corner of the cepha¬
lothorax, by having the legs in the normal position (not separated
in pairs), and by their coriaceous tegument. Because of this latter
character they have often been called “beetle-mites.” The body of
an Oritabid is readily divided into two parts, the smaller and anterior
portion is the cephalothorax, the posterior part is the abdomen ;
beneath the tip of the cephalothorax is a distinct, articulated por¬
tion, the true head. To the head is attached the mandibles and
palpi, both of minute proportions. The cephalothorax is usually
more or less triangular ; a plate of tegument frequently extends from
the base of the abdomen down upon the cephalothorax, thus making
the surface of the cephalothorax continuous with that of the abdo¬
men, and the dorsal outline entire. This plate is known as the tecta!
plate or tectum. Whenever there is a distinct break in the dorsal
outline of the body at the junction of the cephalothorax and abdo¬
men the tectal plate is considered to be absent. And on this char¬
acter the true Oribatidse is divided into two sub-families, the Noth rime
in which it is absent, and Oribatinse in which it is present. Most of
the genera of the former have but one claw to tarsus, and most of
the genera of the latter have three claws ; but there are prominent
exceptions in each group. In some forms the tectal plate is free at

(1)

TRANS. AM. ENT. SOC. XXII.

JANUARY, 1895.

9

NATHAN BANKS.

tij) and divided into spines, more often it is wholly united to the
cephalothorax and only lateral lines or ridges mark its position ; at
its tip there is nearly always a pair of bristles, the anterior bristles ;
and above near base another pair is often present, the superior bris¬
tles. Near each posterior angle or corner of the cephalothorax is a
round spot or pore; from it arises a seta, often clavate ; these pores
are supposed to be the breathing stigmata. The legs arise from the
underside of the cephalothorax, the posterior pairs apparently coming
from the abdomen ; the cox;e are often more or less united into a
plate, the coxal plate ; but there is no real sternum. The legs con¬
sist of a coxa, a trochanter, longer femur, a short patella, a long
tibia, and a metatarsus and tarsus ; the latter two are often more or
less united. The claws vary from one to three in number. The ab¬
domen is of various shapes, often quite globose ; the dorsum is sepa¬
rated from the venter by a lateral line which is really double. In
some forms the base of the abdomen bears lateral expansions of the
tegument, these are called wings. On the venter are two apertures,
the basal one is the genital opening ; the apical one, the anal open¬
ing ; they are closed by two laterally hinged plates meeting on the
median line.

The young are soft-bodied mites, often obovate in form, and some¬
times with curious markings. In those species which have three
tarsal claws the young usually have but one claw. The young have
frequently been mistaken for adults and described under various
genera, as Murcia, Hypochthonius, Claviceps, Michcelia, etc. The
mite upon attaining the adult structure is not necessarily adult ; at
least they moult several times, afterward. These young, but not
larval forms are usually paler than the adult, but otherwise do not
differ, except in size. According to Michael, who has studied the
British species of this family very carefully, the young may be born
in four ways : I, as in the insects, the eggs laid and after a time
hatching; II, the eggs hatching as soon as laid; III, the eggs
hatching just before extrusion, ovo-vivi parous ; IV, the eggs never
being laid, but hatching within the parent some time after the latter’s
death.

The species are all small, rarely one millimetre long. They occur
in many situations, but none, so far as I know, regularly inhabit
houses or other buildings. Some occur under the loose bark of dead
trees, others on the bark ; some on plants, as grass and weeds in
meadows; sometimes even in flowers. Some occur in decaying

NEW AMERICAN ACARINA.

3

animal or vegetable substances, as bones, dead fungi, decaying sod.
A number inhabit moss, especially Sphagnum. Some live on the
ground, hiding in crevices, under leaves, sticks, etc. A few are
found on water plants, and one on the rocks between tides. They
all move quite slowly, and when disturbed are apt to “ play possum”
and be overlooked. Most of the species are vegetable feeders or
scavengers. In the former role they may be injurious, as 0. pra¬
te, min, which is very common in meadows, and 0. arhorea, which
occurs in great numbers on cedar and peach trees. In the role of
scavengers they may often be beneficial. Packard has stated that
Notkrus ovivorus sucks the eggs of the canker-worm moth.

Say, in the Jour. Acad. Nat. Sci. of Phil. vol. ii, 1821, described
two species of Oribata, — 0. concentrica and 0. glabrata, both of
which I have identified. The former by the peculiar structure of
its abdomen is easily placed in L lodes ; the latter must be an Hop-
lophorid, as Say states that the cephalothorax can be deflected on
the abdomen, and I have considered it to be the common form which
I have collected, and which agrees with the description. I)r. Riley
described Hoplophord arctata in vi Mo. Rept. 1874 (also in St. Louis
Acad. Science). From his figures it appears to be a Tritia, and I
think the young of T. glabrata Say. Prof. Packard, in his “ Guide
to the Study of Insects,” described Notkrus ovivorus; and Mr. Ash-
mead, in “Can. Ent.” 1879, described Oribata aspidiotii. These
two forms are very similar, and perhaps, as Haller suggests, identi¬
cal ; I have seen nothing that would agree with them. Their char¬
acters are very peculiar, and if adult (which is doubtful) they would
certainly be neither Oribata nor Notkrus, nor would they fit in any
genus known to me. 0. aspidiotii certainly seems to be a young
form. Fitch, in the 3d N. Y. Rept,, describes Or i bates Jrpilis ; the
description is so short and incomplete it is impossible to definitely
identify it. Considering its habits I have seen nothing that would
fit it; two species of Oribata are known to me as occurring in num¬
bers under bark, but both are smooth. It may be mv Scutovertex
pilosus. Karpelles (Beit, z. Naturgesch. d. Milben, Berlin, 1883)
has described two species of Not hr us from Pennsylvania, N. malleolus
and N. piled for m is. Both are very strange forms (according to the
descriptions), and I doubt if they are Oribatids at all, at least not
adult ones. I have seen nothing that would agree with them.

Haller (Beschr. ein. neu. Milben, I Amerikanischer Arten ; Arch,
tur Naturgesch. 1884) describes five species from “ Amerika” ( Ori-

TRANS. AM. ENT. SOC. XXII.

JANUARY, 1895.

4

NATHAN BANKS.

bata simplex, 0. monodactyla, 0. rileyi, O. americana and Eremceus
leporus). They are probably from Central America, and I have not
seen any of them. Berlese states that 0. monodactyla is the same as
0. dentatus Berlese. Packard (Cave Memoir) described Oribata
alata and Damceus bulbipedata. The descriptions are incomplete,
and the figures not very definite ; the former name is pre-occupied
by the common European form, and it appears to be similar to my
0. robusta. The latter, as stated in the text, is a Belba ; it differs
from B. minuta Bks. in having only a few hairs on the abdomen,
and in some minor characters of the legs. Dr. Riley, in his notes to
Hubbard’s “Orange Insects,” describes Hermannia (?) trinebulosa.
This is undoubtedly a larval Oribatid, and I have seen forms quite
like it, but I am not sure to what species it belongs. The three
species placed by Koch in the genus Claviceps ( Arach. aus. Siberien,
etc.) are young Oribatids; two species very similar to Dr. Riley’s
form. The larvae of Oribata pratensis and 0. arborea, which I have
collected are of the same shape, but lack the dark patches.

I have seen no form that would exactly fit European species ; but
Nothrus excisus, found on the bark of evergreens, comes very close
to the European A. segnis found in similar situations. Perhaps on
a comparison of specimens, some of our species will prove to be the
same as some European forms, particularly those from the northern
part of Europe.

The super-family Oribatoidea is at once divided into two well-
marked families : the Oribatidse, in which the cephalothorax is im¬
movably attached to the abdomen ; and the Hoplophoridse,* in
which the cephalothorax is movable. The latter family have the
dorsum of the abdomen continued down on the sides and venter,
leaving only a small ventral region. The Oribatoidse are readily
divided into two sub-families by the presence (Oribatidse) or absence
(Nothrinse) of a tectal plate. Some authors consider these as fami¬
lies, and equivalent to the Hoplophoridse. Berlese places two other
families in this super-family, the Tarsonemidse and the Panopliidse.
Canestrini places the Tarsonemidse next to the Tyroglyphidse.
Neither of the families has much resemblance to ordinary Oribatids,
and no forms have been recorded from the United States. The
Hoplopidse are also sometimes placed close to the Oribatidse ; the
species are rare, and no forms are known to me.

*■ This name; I suppose, will have to he changed, as Hoplophora is pre-occupied
in the Membracidse ; the other genus of the family, Tritia, is, I believe, pre-occu¬
pied in the Gasteropoda.

NEW AMERICAN ACARINA.

5

ORIBATIDiE.

The following genera are known to me :

1. — With a tectal plate . 2.

No tectal I'late . 6.

2. — With wings to abdomen . 3.

No wings . 5-

3. — One claw to tarsus . ©ribatodes.

Three claws to tarsus . 4.

4. — Tectal plate wholly attached to the cephalothorax, entire . ©ribata.

Tectal plate free at tip, which is more or less deeply cleft . ©ribatella.

5. — Tectal plate quite large, free at tip . Ceplius.

Tectal plate small, wholly attached to cephalothorax . Scntoverlex.

6. — One claw to tarsus . 7.

Three claws to tarsus . 8.

7. — Legs much shorter than body, cephalothorax with lateral ridges or wing-like

expansions . tarabodes.

Legs slender, posterior pair as long as the body, no wing-like expansions to
cephalothorax . Belba.

8. — Dorsum composed of concentric rings . L,iodos.

Dorsum different . N Otbr US.

OKI B AT A Latr.

With a tectal plate wholly united to the cephalothorax ; abdomen
furnished with lateral wing-like expansions ; three claws to the tarsus,
the middle one larger than the other two. Body more or less globose,
smooth, rarely with bristles ; legs shorter than the body and with
fusiform joints, thinly clothed with simple hairs, one near the tip of
the penultimate joint being much longer than the others.

The genus is very rich in species, and some species are very com¬
mon. The young are soft-bodied mites, sometimes with one or two
lai •ge, black spots ; upon attaining the adult form it is usually paler
and smaller than when really adult.

1. — With short bristles on abdominal dorsum . hirsuta.

Without bristles . 2.

2. — Wings as high as long, set® very short . arborea.

Wings longer than high . 3.

3. — Wings small, triangular, not projecting in front of abdomen . 6.

Wings large, more rectangular, projecting in front of abdomen . 4.

4. — Lower border of wing emarginate . eniargiuata.

Lower border entire . 5.

5. — Abdomen high, convex, a pale spot at base . robusta.

Abdomen depressed, no pale spot . depressa.

0. — Abdomen depressed, without any small smooth spots, legs short- . lmcsfa.
Abdomen high, convex, several small smooth spots . 7.

7. — Tectal plate terminated by a distinct transverse ridge . pratonsis.

No ridge, only a bristle each side . 8.

8. — No superior bristles, wings more than half as high as long . niagiia.

Superior bristles present, wings not half as high as long, very small. afli ills.

TRANS. AM. ENT. SOC. XXII. JANUARY, 1895.

Oi'ibala pratensis nov. sp. — Length .7 mm. Yellowish or reddish, legs
paler ; tectal plate broader than long, terminated by a transverse ridge, at each
anterior corner is a bristle, superior bristles long ; setae of stigmata very short,
capitate ; abdomen high, smooth, three small, smooth spots each side, the basal
one oblong ; wings small, about half as high as long, triangular ; venter smooth,
just in front of the anal opening there is the outline of a short, elavate figure ;
the genital opening fully twice its length in front of the larger anal opening; a
black spot on each side of coxal plate. Legs moderate, the femora broad.

Sea Cliff, L. I., N. Y. ; swept from grass in great numbers.

Oi'i l»u t a a Hi ii is nov. sp.— Length .8 mm. This species has much the re¬
semblance of 0. pratensis, having a high abdomen, small wings, broad femora, etc.
But it differs in a number of ways ; the tectal plate is about as long as broad at
base, it is not limited by a ridge ; there is a faint suture between the base of tec¬
tal plate and the abdomen, in which are two round spots ; the smooth spots on the
abdomen are smaller and indistinct ; the wings are not half as large as in 0. pra¬
tensis, being extremely small ; the seta* are longer ; the genital opening is not quite
twice its length in front of the anal ; on the coxal plate there is a line each side.

Washington, D. C. Many specimens under the loose bark of a
tree.

Oribata inagna nov. sp. — Length 1 mm. Reddish, legs paler ; tectal plate
quite long, no anterior ridge, only a bristle at each corner, no superior bristles ;
abdomen extremely high and convex, smooth, four small round spots on each
side, the three posterior forming a triangle; wings moderate, triangular, fully
half as high as long, tip rounded ; venter smooth, genital opening not quite twice
its length in front of anal ; a black spot each side on coxal plate ; legs moderate,
the femora broad, the posterior pairs distinctly margined ; setae of stigmata mod¬
erate, elavate.

Sea Cliff, N. Y. Five specimens.

By its large size and convex appearance it resembles Ceplms ni-
tidus, but is readily distinguished by its wings, etc.

Oribata moesta nov. sp. — Length .55 mm. Red-brown, legs yellowish,
have never observed a pale spot at base of abdomen ; tectal plate terminated each
side by a bristle, no anterior ridge, superior bristles quite long, erect ; abdomen
but little convex, depressed, smooth, shining ; wings small, triangular, tip rounded,
nearly one-half as high as long, not projecting in front of abdomen ; venter
smooth, genital opening one and one-half times its length in front of the larger
anal opening ; coxal lines nearly complete ; legs short ; setae moderate, capitate.

Sea Cliff, N. Y. Not uncommon on the ground.

Known by its small wings and flat body.

Oribata tlepressa nov. sp. — Length .45 mm. Red-brown, no pale spot
above, legs yellowish ; cephalothorax short, tectal plate terminated each side by a
bristle, superior bristles moderate, erect ; setae moderate in length, capitate ; ab¬
domen smooth, depressed, plainly longer than broad ; wings large and long, pro¬
jecting in front of the abdomen, twice as long as high, convex behind, in front,

NEW AMERICAN ACARINA.

/

and beneath, no emargination ; venter smooth, genital opening about twice its
length in front of anal opening ; a line and a spot each side on coxal plate ; legs
short.

One specimen, Sea Cliff, N. Y. Differs from 0. robmtci in smaller
size, flat body, more rounded wings, and absence of a pale spot.

O r i ba t it robust a nov. sp. — Length .75 mm. Reddish brown, legs yellow,
a small white spot at base of abdomen ; tecta 1 plate terminated each side by a bristle,
superior bristles erect; setae clavate, with a quite long stalk; abdomen convex,
highest at about the middle, smooth ; wings very large and long, broadly rounded
behind and below, entire, projecting much in front of the abdomen and obtusely
pointed ; venter smooth, genital opening twice its length in front of the very
much larger anal opening ; coxal plate each side with a line broadest at the outer
end ; legs moderate.

Three specimens from Sea Cliff, N. Y. ; two from Ft. Lee, New
Jersey ; and one from Washington, D. C. Distinguished by the
shape of its large wings, and by its long setae.

Oribafa einarginata nov. sp. — Length .75 mm. Black, yellowish at base
of abdomen and cephalothorax, tips of legs yellowish, femora often whitish ;
young specimens more reddish ; cephalothorax short and convex, more steep than
in allied forms; tectal plate terminated each side by a bristle; superior bristles
short, erect ; set;e moderate, clavate ; abdomen broad, high, convex, smooth, shin¬
ing, two incisions on anterior margin ; wings large, somewhat rectangular, pro¬
jecting in front of abdomen, anterior and posterior sides oblique and convex,
rounded beneath on posterior part, strongly emarginate a little in front of middle,

venation often quite distinct; venter smooth, genital opening about once and a
half its length in front of the larger anal opening ; a line on each side of coxal

^ '

plate ; legs as usual.

Not very common, in moss. Sea Cliff, N. Y. ; Chicago, Ill. ; Brazos
County, Texas. Easily recognized by its large, emarginate wing and
dark color. A male adult is somewhat smaller.

Orihata arborea nov. sp. — Length .6 mm. Yellow, or reddish brown,
often with a white spot at base of abdomen ; body moderately convex and high,
highest behind ; tectal plate, terminated each side by a bristle, superior bristles
moderate, erect ; setse very short, clavate ; abdomen smooth, sometimes showing
an oblong spot at base ; wings as high as long at base, tapering each side to the
rounded tip ; venter quite smooth, genital opening once and a half its length in
front of the much larger anal opening, a short transverse line a little in front of
anal opening, two lines each side on coxal plate ; legs about as usual, posterior
femora broad.

Sea Cliff, N. Y. Common on cedar and peach trees. Readily
distinguished by the shape of the wings and by the very short sette.

Oribata birsuta nov. sp. — Length .4 mm. Wholly pale brownish yellow;
cephalothorax triangular, convex, two superior bristles and two marking its tip ;
set* short, capitate ; abdomen not high, a little longer than broad, smooth, ante-

TRANS. AM. ENT. SOC. XXII.

JANUARY, 1895.

8

NATHAN BANKS.

rior margin with two incisions, bearing above about thirty bristles, those near the
tip slightly longer than the others; wings moderate, somewhat triangular,
rounded, the lower margin incurved; venter quite roughly granulate, the genital
opening much more than its length in front of the larger anal opening ; two short
lines each side on the coxal plate ; legs short.

Sea Cliff, N. Y. Quite common, especially in sandy places, under
dead leaves. Readily distinguished by its small size, bristly body
and yellowish color.

ORIBATELL4 liov. gen.

The tectal plate is large and joined to the cephalothorax only at
base, the apex free and usually divided into two or more lobes or
spine-like projections. The body is more often bristly than in Ori-
bata, otherwise it is very similar to that genus.

Though several species are known to me they are all moderately

rare, strongly contrasting in this respect with the abundance of
several species of Oribata.

1. — With some bristles on abdomen . > . 2.

No bristles on abdomen . 4.

2. — Tectal plate bidentate . -3.

Tectal plate quadridentate . 4-<lent»ta.

3. — Bristles arising from dark spots, wing small, triangular . bidentala.

Bristles not arising from dark spots, wing large, semi-circular . obesa.

4. — Wings armed in front with a large spine . armala.

Wings unarmed . 5.

5. — Tectal plate divided into four long pointed spines . aquatiea.

Tectal plate divided into two truncate lobes . siguata.

Oribatella 4-<lentata now sp. — Length .6 mm. Reddish, legs paler, and
a triangular yellow spot at base of abdomen ; tectal plate large, divided in front
into four long, equal spines, a long bristle each side at the inner base of the outer
spine, superior bristles shorter; set* of stigmata short; sides of head concave;
abdomen nearly circular, moderately high, base rounded, with about twenty-four
long, stiff bristles ; wings large, finely reticulate, anterior margins finely dentate,
terminating below in a small spine ; venter smooth, genital opening about once
and a half its length from the equal anal opening ; coxal plate with a line each
side ; legs short, with stiff bristles.

I have one specimen of this fine species from Sea Cliff’, N. Y.

Oribatella bidentata nov. sp. — Length .5 mm. Cephalothorax reddish,
abdomen nearly black, with a yellow spot at base, legs yellowish ; tectal plate
narrow, deeply bifid at tip, with a short, stiff bristle at end of each projection ;
superior bristles long, erect ; sette quite long, clavate at tip ; abdomen depressed,
longer than broad, smooth, with about twenty black patches each giving rise to a
bristle; wings moderate, triangular: venter smooth, genital opening not much
more than its length from the larger anal opening ; coxal plate with a black line
each side ; legs very short and stout, femora broad, those of anterior pairs mar¬
gined.

NEW AMERICAN ACARINA.

9

Sea Cliff, N. Y. Uncommon, in moss; to the naked eye it has a
black, shiny appearance.

Oribatella obesa nov. sp. — Length .6 mm. Reddish, legs yellowish, a
pale spot at anterior edge of abdomen ; tectal plate not very large, deeply bilobed,
each lobe slightly rounded and with a bristle at tip, superior bristles moderate,
suberect ; set® short, clavate ; abdomen broad, depressed, finely granulate, with
a few bristles, most numerous toward tip, no dark spots ; a small, oblong, light one
each side near base and three rounded ones near tip ; wings quite large, nearly
semi-circular ; venter smooth ; legs moderate, a plate behind and one in front of
anterior cox®.

Two specimens, one Olympia, Wash. (Trevor Kincaid) ; the other
in a vial of Sea Cliff things, but it may have gotten in by mistake.

Oribatella aqiiatiea nov. sp.— Length .55 mm. Dark reddish, legs yel¬
lowish, a pale spot at base of abdomen ; body very broad, nearly circular, moder¬
ately depressed, smooth ; tectal plate short and broad, ending in front in four
slender spine-like projections, the lateral ones being sinuate and more closely ap-
pressed to the sides of the cephalothorax, the median or dorsal pair slightly
curved and with a bristle at tip ; superior pair of bristles long, curved forwards :
set® moderate, clavate ; abdomen large and broad, anterior edge advanced in the
middle ; wings moderate, oblong ; venter smooth, genital opening not much more
than its length from the larger anal opening; coxal plate divided.

Not uncommon, Sea Cliff, N. Y. This species lives on aquatic
plants, and can walk over the surface of stagnant water very readily ;
I have kept specimens in an aquarium for several months. There is
nothing peculiar in the structure of the feet.

Oribatella signata nov. sp. — Length .45 mm. Dark reddish brown, legs
yellowish, a pale triangular spot at base of abdomen ; body moderately high, con¬
vex, dorsum smooth ; tectal plate large, reaching to end of the cephalothorax,
triangular, sides slightly concave, truncate in front and deeply bifid, a short stiff
bristle at each corner of the lobes; superior pair of bristles long, curved, directed
forwards ; set® quite long, clavate ; abdomen longer than broad ; wings moder¬
ately large, triangular, projecting somewhat in front, lower margin rounded ;
venter smooth, genital opening about once and a half its length from the much
larger anal opening ; a dark line each side on the coxal plate ; legs moderate, a
little more hairy than usual.

Two specimens, Sea Cliff, N. Y.

Oribatella arm ala nov. sp. — Length .55 mm. Dark reddish, legs yel¬
lowish, a yellow spot at base of abdomen ; body high, convex, smooth ; tectal plate
oblong, deeply cleft, end of each lobe rounded, a small bristle from each ; superior
bristles moderately long, directed forwards ; set® quite long, clavate ; dorsum of
abdomen with a few indistinct short hairs; wings large, somewhat oblong, with
a very large curved spine from the upper anterior margin ; venter smooth, genital
opening not quite once and a half its length in front of the anal opening; coxal
plate divided by a long dark line each side ; legs about as usual, a curved plate
behind anterior cox®.

Sea Cliff, N. Y. Four specimens.

TRANS. AM. ENT. SOC. XXII. (2)

FEBRUARY. 1895.

10

NATHAN BANKS.

O IS I IS.4TODES gen. nov.

Somewhat resembling the two preceding genera, with a large free
tectal plate, wings to the abdomen, legs slender, with fusiform joints
and simple hairs, the tarsus with but one claw, the genital opening
is large and just in front of the larger anal opening, not well sepa¬
rated from it. The roughened appearance of the only species known
to me also distinguishes it from its allies.

Oribsttodes mirabilis nov. sp. — Length .5 mm. Dark red-brown, legs
barely paler ; body short, broad and convex ; tectal plate large, the lateral mar¬
gins somewhat reflected, front margin broad, concave, the corners sharp pointed
and each bearing a short, stiff, curved bristle ; two superior bristles very long,
directed somewhat forward ; setae quite long, clavate ; abdomen globose, granu¬
late, with an irregular network of ridges, bearing above about sixteen long, stiff,
finely serrate and almost clavate bristles, disposed mostly in a longitudinal row
each side, a transverse row of four or six much shorter, distinctly clavate ones at
tip ; wings moderate, granulate, incurved, not extending in front of the abdomen ;
venter with some irregular ridges, genital opening large, barely separated from
the larger anal opening ; cox* mostly free ; legs short, a large curved plate each
side of cox* I.

In rotten debris under loose bark of dead trees, Sea Clift’, N. Y.
Five specimens were taken at different times during the Summer ;
two specimens have the genitalia extruded, so the form must be
perfectly mature.

CEPHUS Koch.

Tectal plate free at tip, no wings to abdomen, legs with fusiform
joints and simple hairs, three equal claws to tarsus, genital opening

much in front of the anal.

The genus has much the appearance of Oribata. I have two
species.

Abdomen densely punctulate . punctulatus.

Abdomen smooth . nit id us.

Cephas punctulatus nov. sp. — Length ,85 mm. Dark reddish, legs paler;
cephalothorax narrow, with the tectal plate reaching nearly to tip of head, front
quite broad, truncate and cleft, with several short and one long bristle on each
side, lateral ma rgins wing-like ; superior bristles moderate ; set* short, clavate ;
surface of tectal plate and cephalothorax finely punctulate ; abdomen elliptical,
finely and densely punctulate, with two short, still- hairs on each shoulder, and
six near the tip and one each posterior side ; venter granulate, anal plates smooth ;
legs short.

Sea Cliff, N. Y. In a decaying fungus and swept from weeds ; rare.

Cephus nitidus nov. sp. — Length 1. mm. Dark reddish, legs yellowish;
tectal plate moderate, triangular, appressed to cephalothorax, but from the side

NEW AMERICAN ACARINA.

11

seen to be free, terminated each side by a short stilf bristle, its surface smooth ;
superior bristles short, erect; setae moderate, clavate; abdomen large, globose,
high, smooth ; venter smooth, genital opening more than twice its length in front
of the very much larger anal opening; legs short, just behind coxae I is a large
curved plate reaching to the upper corner of the cephalothorax ; coxal plate with
three complete lines.

Quite common on the ground, under pieces of wood, bark, stones,
etc. Sea Cliff, X. Y. ; Ft. Lee, X. J. ; Washington, I). C. I have
two or three much smaller specimens which are proportionally nar¬
rower and more depressed, but I think they are the same.

SCIJTO V E RT EX Mich.

Tectal plate small, united to the cephalothorax ; no wings to ab¬
domen ; legs with fusiform joints and simple hairs; tarsi with three
claws ; genital opening some distance in front of anal opening. Of
the two species placed here one ( pilosus) has the claws equal ; the
other has the middle claw the larger. The former would thus seem
to be an Oppia, but the tectal plate is quite different from that genus,
and moreover the two species appear to be otherwise very close! v

related.

Abdomen with prominent bristles, as long as the setae . pilosus.

Abdomen with only very short and line hairs . con color.

Sou to vertex pilosus nov. sp. — Length .8 mm. Yellow-brown; body
moderately high and convex, smooth ; tectal plate completely united to the ceph¬
alothorax, reaching about half way to tip, two long bristles at tip, superior bristles
long, erect; setae of stigmata short and clavate; dorsum of abdomen with about
eighteen or twenty long bristles in four rows ; venter finely granulate, genital
opening much more than twice its length in front of the larger anal opening, a
curved ridge just behind anal opening ; coxal plate divided in the middle, a line
in front and behind on each side ; legs moderate, femora broad ; three equal
tarsal claws.

Sea Cliff, X. Y. ; Ft. Lee, X. J. Quite common in crevices of the
bark of trees.

Scutovertex concolor nov. sp.- Length .4 mm. Yellowish brown; tec¬
tal plate short, wholly united to cephalothorax, truncate in front, terminated each
side by a bristle, superior bristles moderate ; set* quite long, clavate ; abdomen
somewhat depressed, smooth, longer than broad, with some scattered, very short
and very fine hairs ; venter smooth or finely granulate, genital opening nearly
twice its length in front of the larger anal opening ; coxal plate divided and a
line each side in front and behind ; legs moderate, femora quite broad ; tarsal
claws unequal, the middle being the largest.

Sea Cliff, X. Y. In dead fungi.

TRANS. AM. ENT. SOC. XXII.

FEBRUARY, 1895.

12

NATHAN BANKS.

IS ELK A Koch.

No tectal plate, no wings to abdomen, tarsi with but one claw, no
wing-like expansions to cephalothorax ; legs long and slender, the
hind pair as long as body, the joints nodulate and with simple hairs,
the ventral apertures in the typical forms are widely separated.

Abdomen smooth, ventral apertures widely separated . minufa.

Abdomen minutely spinu late, ventral apertures approximate . australis.

Belba aninuta nov. sp. — Length .45 mm. Yellowish brown cephalothorax
convex, triangular, two anterior bristles ; two superior bristles erect, shorter than
the long, slightly clavate setae ; abdomen elliptical, convex, smooth, with about
fifteen prominent bristles above ; venter smooth, genital opening fully twice its
length in front of the much larger anal opening ; anterior coxae free, the posterior
pairs united into a plate without any line or spot on the sides ; legs slender, the
posterior pair as long as the body.

Sea Cliff, N. Y. ; Chicago, Ill. ; Ft. Lee, N. J. This very com¬
mon mite is chiefly in decaying animal substances, but it frequently
occurs in moss, under bark, on the ground, etc.

Belba australis nov. sp. — Length .6 mm. Red-brown, trochanters and
femora darker ; cephalothorax quite high, two pairs of curved bristles in front, a
pair of bristles a little in front of and shorter than the set®, the latter are very
long and not clavate, the stigmata prominent ; the abdomen is high, convex and
minutely spinulate above, and with about a dozen stiff, strongly curved bristles ;
venter smooth, genital opening barely separated from the anal opening; cox®
united into a large plate with two lines each side; legs slender, the posterior pair
longer than the body.

One specimen, Shreveport, La. This species might form a sepa¬
rate genus on account of the position of the genital opening, the
simple set®, and the structure of the cox®.

CA BA BODES Koch.

No tectal plate, but with a transverse crest in front of the stig¬
mata giving rise each side to an elevated, often plate-like ridge ;
abdomen without wings, usually with clavate hairs ; legs shorter
than body, barely nodulate, provided with simple hairs ; each tarsus
with one claw ; genital and anal apertures usually approximate.

1. — The genital opening far in front of anal opening . oblonga.

The openings approximate . 2.

2. — Black, four rows of white scale-like hairs . nigra.

Yellowish, clavate hairs mostly at tip . apicalis.

Carabodes nigra nov. sp. — Length .5 mm. Black, legs yellowish or red¬
dish ; cephalothorax broadly triangular, narrowed behind, a few hairs at tip ;
crest large, with two large spatulate white hairs above, and behind on each side a
circular elevated area which is minutely pitted ; the set® of stigmata quite long

NEW AMERICAN ACARINA.

13

and clavate ; abdomen broadly elliptical, posterior margin crenulate, witb many
deep pits above and four rows of four large spatulate white hairs ; sides striate;
venter smooth, legs short, barely nodulate, the femora thickened, other joints
slender, with a few simple hairs ; genital and anal apertures large and close
together.

Sea Cliff, N. Y. Common in decaying fungi ( Polyporus ) ; a few
specimens found under a piece of bark on the ground.

Carabodes sipicali* nov. sp. — Length .45 mm. Reddish, legs yellowish ;
cephalothorax sub-triangular, anterior sides concave, posterior sides nearly
straight, slightly contracted behind, with a curved ridge each side from tip to
stigmata, several other smaller ridges, stigmata large, setse short, clavate ; two
stiff clavate hairs near middle, and two fine hairs at tip ; abdomen truncate at
base, gradually growing wider, broadly rounded behind, a few irregular ridges
each side and above irregularly reticulate with ridges, each side a sub-median row
of three clavate hairs and about teu or twelve similar ones around the tip : venter
smooth, with two lines each side; genital aperture nearly circular, slightly sepa¬
rated from the anal opening; palpi more prominent than usual; legs short,
slightly nodulate, the femora, especially femur I, quite long, the tarsal joints
much abbreviated, with very few hairs, except at tip.

Sea Cliff, N. Y. Six specimens.

( a i'u bodes old onga nov. sp. — Length .55 mm. Black, legs yellowish;
cephalothorax truncate in front, covering the pointed head, emarginate, and with
four curved stiff bristles, surface granulate, sides consist of plate-like expansions,
a large bristle each side, and a smaller median pair ; stigmata near margin, set®
moderate, clavate ; abdomen truncate in front, over once and a half as long as
broad, not much broader in middle than at base, tip broadly rounded ; surface
deeply and finely pitted ; with about twenty-eight stiff bristles above, mostly
arranged in four rows, those near base project forward over the cephalothorax,
the rest are directed toward the apex ; venter granulate, the cox® all united to
its surface ; the genital opening nearly twice its length in front of the anal open¬
ing ; legs short, barely nodulate, femora thickened, tibi® pedicellate.

Sea Cliff" N. Y. One specimen found under bark of a stump, the
bark was not yet dead nor loose. To the naked eye it looks much
like a small Scolytid beetle. This species should probably form a
new genus on account of the cephalic structure and of the widely
separated ventral apertures.

1VOTHKUS Koch.

The cephalothorax is immovable ; the tectal plate and wings are
both absent ; the body is more or less rectangular and usually fur¬
nished with some clavate hairs ; the legs are short and stout ; the
basal joints about equal in length and in thickness, furnished with
stiff" thickened, sometimes clavate hairs ; the tarsi are all furnished
with three equal claws; the genital and anal openings are very large,
and surrounded by several sutures.

TRANS. AM. ENT. SOC. XXII.

FEBRUARY, 1895.

14

NATHAN BANKS.

Their often roughened appearance and short legs give them a
strange habitus. They are found in various situations, in moss (es¬
pecially Sphagnum), under bark, on trees, etc They move very
slowly, and when disturbed will often lie still for several minutes.

1. — A pair of curved hairs at tip of eephalothorax . 2.

No such hairs . 4.

2. — With only simple hairs at tip of abdomen . fiireatuw.

Clavate hairs at tip of abdomen . 3.

3. — Tip of abdomen deeply excised . excisus.

Tip of abdomen barely excised . riigmlosu*.

4. — With short clavate hairs at each posterior angle of abdomen- . . truncat u*.

With long simple hairs at each angle of abdomen . bipilis.

Xollirus I i’ll neat ns nov. sp. — Length .7-8 mm. Dark reddish, younger
specimens yellowish, with a dark central spot ; body quite high behind ; dorsum
convex, finely granulate ; eephalothorax quite long, triangular, contracted above
first pair of legs, with a median suture, no hairs in front, a short clavate one each
side close to the stigmata, setae of stigmata long and simple ; abdomen wider
behind, sides slightly sinuate, truncate in front and behind, margin elevated, a
sub-marginal ridge converging near tip, a sub-marginal and a sub-median row of
five clavate hairs, at each posterior angle a large cla vate hair, and a pair of smaller
ones near the middle of tip, sides of abdomen smooth ; the legs are stout, with a
few stiff hairs, finer near the tips. Young* specimens are paler and have a lower
abdomen.

Sea Cliff, L. I., N. Y. Several specimens from Sphagnum, one
in some moss on a rock, another under decaying sod.

IVotlirus bipiltis nov. sp. — Length 1. mm. Dark reddish, sides and venter
paler. Similar to i\r. trwncatus , but the abdomen much broader and higher, the
side piece of abdomen being nearly as high behind as it is long ; at each posterior
angle of the abdomen, instead of the short clavate hair as in N. truncatus. is a very
long, curved, simple hair ; the genital and anal openings are broader than in the
preceding species.

Sea Cliff, L. I., N. Y. One adult and two young specimens from
Sphagnum.

\otliriis I'll r«'» t us nov. sp. — Length .7 mm. Reddish brown; body flat;
dorsum smooth ; eephalothorax triangular, harrowed behind, with a curved ridge
each side, two stiff curved hairs in front and two bristles above, seta quite long,
not clavate; abdomen gradually growing wider, base truncate, tip broadly
rounded, crenulate and bearing eight curved bristles, four bristles on each side
margin ; above, a sub-marginal ridge each side reaching from base to near poste¬
rior angles, between their tips a curved, transverse, sub-apical ridge, in the centre
of dorsum a forked ridge reaching from base to near sub-apical ridge, four simple
hairs arise from each branch of the fork, a few simple hairs at base of dorsum ;
legs stout with short, stiff, curved bristles.

Olympia, Wash. [Trevor Kincaid]. Several specimens.

NEW AMERICAN ACARINA.

15

\ of li rus esrisns nov. sp. — Length .7 mm. Pale brown, legs a little darker;
body quite flat ; dorsum irregularly roughened ; cepbalotborax sub-triangular,
truncate in front, from each anterior angle projects a stiff curved hair ; stigmata
elevated, prominent, with a short capitate seta; abdomen truncate in front,
slightly broader in the middle, deeply emarginate behind, from each posterior
angle projects a roughened clavate hair, and a sub-clavate hair from each side
just before the angles, beneath tip a median pair of smaller clavate hairs; start¬
ing from near the base there is each side a sub-median ridge, which near the tip
curves toward the posterior angles, at point of curvature is a short transverse
ridge ; on each side margin there are three or four very short clavate hairs ; the
sides, venter and legs, are all roughened, the latter with stiff, curved bristles, finer
near tips ; most of the hairs on the body when much magnified are seen to be
serrate ; the form of the cepbalotborax is caused by the development of the upper
surface over the anterior end of the head, the latter, as usual, being blunt pointed.

Sea Cliff, L. I., N. Y. Oil the bark of spruce trees, where it is
much protected by its color.

\ ol li rus rugulosiife nov. sp. Length .7 mm. Dark brown, abdomen
paler; related to A. excisus, but the abdomen is truncate behind, not deeply emar¬
ginate, in some specimens a little rounded ; there are four large clavate hairs on
each side margin, the margins are roughened, but the general surface of the dor¬
sum is smooth, the abdomen is as wide in front as behind, and but slightly wider
in the middle ; the two hairs, at tip of cephalothorax, are much more clavate than
in X. excisus, the seta of stigmata is clavate ; the legs are roughened and furnished
with stiff, curved hairs.

Sea Cliff, L. I., N. Y. Under loose bark of dead trees; a speci¬
men from Chicago, Ill., seems to be the same species.

LIODES Berlese.

This genus differs from Not hr us in having the dorsum of the ab¬
domen composed of concentric rings ; the legs are more slender and
smoother, more like Oribata than Noth rus, in that the patella is very
short compared with the femur and tibia.

We have but one species, which was discovered and described by
Say.

Liodes convent ricus Say.

Oribata concentrica Say. Comp. Writ. LeConte Ed.

Length 1.3 mm. Black; cephalothorax broadly triangular, narrowed behind,
margins serrate, seta short, clavate ; abdomen elevated, dorsum composed of four
concentric circles, connected to each other by curved lines or ridges, the circles
are not perfect, but elongate and pointed behind, the central one is divided by a
median line, which is connected to the sides by oblique lines ; there are a few fine
hairs on the anterior margin of the abdomen ; sides and venter granulate, legs
quite long, smooth, and with a few simple white hairs.

Washington, I). C. Several specimens under bark of an elm tree.
Say had it from Pennsylvania; Enterprise, Fla. (II. G. Hubbard).

TRANS. AM. ENT. SOC. XXII.

FEBRUARY, 1895.

16

NATHAN BANKS.

HOPLOPHORIDgE.

This family (litters considerably from tlie Oribatidse. The cepha¬
lothorax is movable, and the dorsal integument of the abdomen is
continued down upon the sides and venter, leaving only a small ven¬
tral region or true venter, which contains the usual apertures. The
legs are shorter and the coxae more free than in most Oribatids.

One claw to tarsus, ventral region broad . Hoplopliora.

Three claws to tarsus, ventral region narrow . Tritia.

Tit IT I A Berl.

Body more or less oblong, especially in the young; tarsi with
three claws; ventral region very narrow, several times as long as
broad.

Tritia gSalnala Say.

Oribata glnbrata Say, Comp. Writ. LeConte Ed.

Hoplopliora nrctata Kiley, vi. Mo. Rept. 1874.

Length 1. mm. Dark red-brown ; cephalothorax a little longer than broad,
broadly rounded in front, wholly covering the head, smooth, a few hairs in front,
at each posterior angle a round stigmata with a simple seta : legs very short,
smooth, with simple hairs: abdomen large, high, very convex, truncate in front,
smooth, anterior sides oblique, nearly meeting on the venter, only leaving a very
narrow slit, which contains a long cleft ridge, the anterior portion being the
genital opening, and is terminated by a transverse line; on each side of the slit
near the tip is a fine hair; above on the dorsum several scattered, quite long, and
very fine hairs.

Common on the ground. Sea Cliff, N. Y. Say’s specimen was
from Florida. Dr. Riley’s H. arctata, from Missouri, is, 1 think,
only the young of this species, at least it agrees well with the forms
which 1 take to be the young found on Long Island.

HOI'LOPHORA Koch.

Body usually globose, one claw to tarsus, venter quite broad, the
apertures usually broader than long.

Hoplopliora setosa uov. sp. — Length .6 mm. Cephalothorax and legs
yellowish, abdomen dark brown ; cephalothorax once and a fourth as long as
broad, somewhat pointed in front, above showing two large lateral depressions ;
stigmata circular bearing a clavate seta, a paii'of superior bristles near base and
a pair of short stiff ones in front ; legs short, finely granulate, and with simple
hairs, some very long; abdomen high, globose, convex, smooth, with a basal
transverse row of four long bristles, and behind with two longitudinal rows of
about four long bristles, the longest bristles are as long as the cephalothorax •,
venter broad, genital opening broader than long, connate with the equal, poste¬
riorly rounded, anal opening, three hairs on each side of the venter.

Sea Cliff, N. Y. On the ground.

11 olopliora splia'i'ii la nov. sp. — Length .6 mm. Similar to II. setosa , but
tne body is more globose and higher, and the bristles are not one half so long,
barely longer than the setae, six pairs of them above; the setae are thick, but
taper to a sharp point, spatulate rather than clavate ; otherwise about the same.

Three specimens, Sea Cliff, X. Y.

AMERICAN HYM ENOPTERA.

A MONOGRAPH OF THE TRIBE BASSIXl.

BY G. C. DAYIS.

This tribe is characterized primarily by the form of the mandibles,
which have the superior tooth divided or notched at the tip, so that
in appearance there are three teeth to each mandible. It is further
characterized by having the head broader than deep, clypeus sepa¬
rated ; antennae filiform, composed of from twenty to twenty-five
joints, the first one cup-slniped, irregularly and diagonally truncated,
the second much smaller, considerably inserted in the first, the third
cylindrical and longer than those following it, thorax short, broad,
narrowing gradually posteriorly ; abdomen broadly sessile, composed
usually of six segments, the first of which is often traversed by two
longitudinal carinse, and sometimes the first two or three segments
are crossed by a transverse groove (genus Bassus ) ; ovipositor short,
often not exserted. The general form is short and thick set, though
the smallest species (genus Promethus ) are more. slender. The sexes
differ by the % being smaller and less robust ; they also differ in
color markings, the most notable of which is the entire yellow face
of the S , never found in the 9 , and in the other yellow markings
which are more largely developed in the % than in the 9 .

In the immature stage, Bassini are well known as parasitic on
Syrphus fly larvse. The individual host of the various species seems
to be unknown. In our rearings, Bassus scutellaris was bred from a
Syrphus larva on rag weed, August 31st, and we have reared Bassus
lostatorvus, Syrphoctonus agilis and Promethus costal is from Syrphus
larvse feeding on Aphis hrassicce. To Mr. Ashmead we are indebted
for the note on finding Bassus orhitalis and Syrphoctonus pacificus
parasitic on Syrphus larvse feeding on the same. He also reports
the rearing of both sexes of Syrphoctonus pleuralis from a Syrphus
puparium on rose. The species do not seem to confine themselves to
any one species of Syrphidse. Mr. Cresson has a % and 9 of Syr¬
phoctonus agilis reared from a species of Sphcerophoria, while this
year we have reared the same species from quite a different puparium
taken on willow. We have reared Bassus Icetatorius from several
entirely different puparia. In Europe B. Icetatorius has been found

TRANS. AM. ENT. SOC. XXII. (3)

FEBRUARY, 1895.

18

G. C. DAVIS.

parasitic even on other orders as Vanvollenhoven refers to Tischbein,
who bred a specimen from the coleopterous larva of Adimonia rus-
tica, and Reissig, the same species from a Tortrices.

All specimens having the distinctively characteristic teeth, spoken
of above, were first classified under the genus Bassus bv Fallin in
1813, although it is true that the name had already been used by
Fabricius in 1804 in the “ System a Piezatorum,” but with a far
more general and indefinite classification. In 1868, Foerster, after
years of work and study on the Ichneumonidse, wrote a synopsis of
the family in which he made the old genus Bassus a family, and still
further restricted the genus Bassus as one of the genera in this
familv. His family Bassidse, or what is now considered a tribe in
other orders, is represented by ten different genera, six of which are
found in our American fauna. The characters used are plain, easy
to determine, and will greatly aid in a further and closer classification
of our old genus Bassus.

His synopsis is as follows :

The basal segment of abdomen with a cross suture . 1. Bassus Grav.

The basal segment of abdomen without a cross suture.

Wings without areolet.

Face perfectly smooth.

Antenme with more than twenty joints . 2. Prometlms Foers.

Antennae with twenty joints or less.

Clypeus very broad, the spiracles of the same separated farther than the
margins of the eyes . 3. Bioblapsis Foers.

Clypeus not very broad, the spiracles not separated farther than the mar¬
gins of the eyes . . 4. Eiopsis Foers.

Face finely shagreened.

Metanotum more or less areolated . 5. Zootreplies Foers

Metanotum not areolated . 6. Syrphoctonus Foers.

Wings with an areolet.

Metanotum areolated.

The longer spur of the hind tibife extending half the length of the first
tarsal joint . 7. Aiiiaropliron Foers.

The longer spur of the hind tibise not extending half the length of the
first tarsal joint . 8. Phthorima Foers.

Metanotum not areolated.

Base of second segment bicarinate, venter of the same indented.

9. Enizemimi Foers.

Base of the second segment without ridge, venter of the same not indented.

10. Ilomotropus Foers.

It is somewhat surprising at the number of synonyms found in
monographing the tribe. These are mostly due to the great difference
in color markings of the sexes, the male and female of the same

AMERICAN HYMENOPTERA.

19

species being often described as two different species. Through the
kindness of those having the types of Messrs. Cresson, Ashraead and
Provancher in charge, I have been enabled to study the types, with
the exception of one or two of Provancher’s, and compared them
carefully. I have also found specimens comparing well with de¬
scriptions made by Walsh, and with Mr. Cresson’s large collection
to work with, have succeeded in much the more thoroughly system¬
atizing the tribe than could otherwise have been done. More than
this, most of the species were originally described from a single speci¬
men or two of only one sex. As both sexes are now known of a
large share of the species (21 of the 29) and there was much more
material at hand for description, the monograph did not seem com¬
plete without a short description of each species, which will enable
the determination of each sex and a more definite of the species than
otherwise could be.

BASSITS Gray.

Posterior tibiae black, with broad white band.

Abdomen rufous, black at base and apex ; tips of tibiae usually red.

l&etatoi’ius Fabr.

Abdomen black only at apex- • . . var. sycophants* Walsh.

Abdomen black, with only terminal parts of segments 2, 3 and 4 rufous ; tip
of tibiae red, with a black annulus between the red and white.

var. terminalis.

Abdomen black, marked more or less with pale spots or bands ; if middle seg¬
ments are margined with rufous, the posterior tibife not red at tips.

Pleurae black and yellow . orbitalis Cr.

Pleura and sternum honey-yellow . scutellaris Cr.

Posterior tibiae white, black at tips.

Pleura black . concinnus Cr.

Pleura in part rufous . pulchripes Prov.

Bassus l;et at ori us Fabr. ( Ichneumon ) Syst. Piez. p. 63.

B. tripicticrus Walsh, St. Louis Acad, of Sci. iii, 85, 'J, 9 •

9 . — Length 6 mm. Head, thorax, base and tip of abdomen, hind tarsi, base
and lower middle of bind tibiae, black ; four anterior legs, posterior coxae, femora,
and often tips of tibiae, tip of abdominal segment 1, whole of 2 and 3, and more
or less of 4, rufous ; anterior orbits, mouth, tegulse, spot in front, line beneath,
cuneiform spots on mesonotum, scutellum, post-scutellum, and band on posterior
tibiae, white.

y . — Differs only in having the face, scape beneath and a stripe on pleura,
yellowish white.

Var. sycophanta Walsh, differs in having the basal segment of the abdomen
rufous; the metathorax also is rufous sometimes in this variety.

Var. terminalis. — For the want of a better name this dark variety may be known
as terminalis. It has only the terminal half of segments 2, 3 and 4 of the abdo¬
men rufous.

TRANS. AM. ENT. SOC. XXII.

FEBRUARY, 1895.

20

G. C. DAVIS.

This is one of the most common and wide-spread species in America
and Europe.

Bassus orbitalis Cr„ Proc. Ent. Soc. Pliila. iv, 272, 9 •

B. cinctulus Cr., Proc. Acad. Nat. Sci. Pliila. 1878, 375, % 9 •

B. orbitalis Ashm., Proc. U. S. Nat. Mus. xii, 439, 9 •

9 . — Length 5-7 mm. Black ; broad orbital lines, sometimes spot on face,
mouth, tegulae, spot in front, line beneath wings, line on margin of mesonotum
often recurving into two parallel lines in the centre, scutellum, post-sen tellum,
broad central hand on hind tibiae and more or less of abdomen at tip of segments,
yellowish white. Base and tip of posterior tibiae and hind tarsi black ; four an¬
terior coxae and trochanters variable ; metathorax coarsely punctured, rugose ;
first segment of the abdomen with two parallel carinae.

£ . — Has the face and scape beneath white and usually most of the abdominal
segments margined with yellowish white, which varies to ferruginous. It is the
cinctulus of Cresson.

Fifteen female and twenty-three male specimens front Colorado,
Nevada, California, Montana, Oregon, New York, New Hampshire
and Ottawa, Canada.

Bassus seutellaris Cr., Trans. Amer. Ent. Soc. ii, 112.

9 . — Length 4-6.5 mm. Black ; pleura, sternum, and most of legs, honey-
yellow ; orbits, spot on front, mouth, tegulae, spot in front below and above, scu-
tellum, post-scutellum, annulus on posterior tibiae, and more or less of the margins
of the abdomen, white ; remainder of posterior tibiae and tarsi black ; metathorax
and first three segments of abdomen, from base to transverse groove, rugose ;
deeply punctured.

£ . — Differs only in having face, scape beneath, and four anterior coxae and
trochanters white.

Five female and two male specimens from Illinois, Michigan,
Ottawa (Canada), Georgia, Virginia and Mt. Hood, Oregon.

Bassus concinnus Cr., Trans. Amer. Ent. Soc. ii, 111.

<p . — Length 5.5 mm. Black, legs honey-yellow, except the trochanters and
anterior coxae, which are yellowish white; posterior tibiae, which are white, black
at tips, and posterior tarsi which are black. The following parts are marked with
yellowish white ; anterior orbits, mouth, tegulae, spot in front, above and below,
scutellum and post-scutellum ; metathorax and base of abdomen coarsely and
deeply punctured as in scutellaris ; first segment with two distinct carinai.

^ . — Same, except entire face, underside of antennae and four anterior legs,
white : the terminal portions of the abdominal segments are slightly rufous.

Two female specimens from Connecticut, and one male from Mass.

Bussus pulcliripes Prov., Faune Ent. Can. ii, 428.

9 . — Length 5-7.5 mm. Black, with pleura, scutellum usually, and a patch in
front of it, rufous. Legs variable from rufous to almost white; posterior tarsi,
except basal segment, which is white, and tip of posterior tibiae black; mouth,
short orbital lines in front, tegulae, spot in front, line below, broad line on margin

AMERICAN HYMEXOPTERA.

21

of mesonotum, line on side between meso- and metathorax, tip of scutellum and
post-scutellum reddish yellow. One 9 has the entire mesothorax rufous. Ab¬
domen closely punctured and covered with a fine sericeous pile.

• — Has the face, scape beneath, prosternum, more or less of pleura, and gen¬
erally the legs, except posterior femora, white.

Seven female and six male specimens ; two from New Hampshire,
one from Ottawa, and the remainder from Colorado.

PROHIETIHJS Foerster.

Mesonotum black, without yellow markings . . cosfulis Prov.

Mesonotum with yellow bands in front of tegulae.

9 . — Posterior coxae black or yellow ; ^ with the face entirely yellow.

elongatus Prov.

9 ■ — Posterior coxae same color as femora ; % face black, yellow down the
centre . ruticrus Walsh.

Promet 1ms cost ill is Prov. (Bassus), Faun. Ent. Can. ii. 432. 9-
/>. longicornis Prov. ibid. 799, 'J, .

B. aciculatns Prov. Add. Faune Hymen. 368, 9 •

B. auriculatus Prov., ibid. 429, 9 •

9 • — Length 4-5 mm. Head, thorax, base, and usually extremity of abdomen,
shining black ; mouth, tegulae, spot in front and line beneath each wing, light
yellow ; antennae slender, reddish brown. Wings large, very clear, veins and
stigma light brown ; areolet incomplete, pentangular in outline. Abdomen slen¬
der ; first and second segments aciculated, tip of segment 2, all of 3 and 4, and
base of 5, rufous. Legs, except coxae, honey-yellow.

. — Differs only in having the entire face and scape beneath, light yellow.
The three synonyms of costaMs are all from descriptions of males.

Four female and four male specimens ; Canada, New Hampshire,
Montana, Washington.

Promethus elongatus Prov. (Bassus), Faune Ent. Can. ii, 799, % 9 •

9 . — Length 4-5 mm. Black, with segments 2, 3 and 4 of the abdomen more
or less red ; antennae reddish brown ; spot beneath at base, mandibles, palpi,
tegulae, spot in front, beneath and above on mesonotum, trochanters and tips of
coxae yellowish white. Base of coxae generally black ; posterior tarsi dusky ;
remainder of legs honey-yellow ; metathorax coarsely punctured ; first segment
of abdomen long, rectangular and rugose ; second segment aciculated.

■J, . — Differs in having the entire face, antennae beneath and a crescent on the
mesonotum yellowish white.

Four female and two male specimens from Canada, New Hamp¬
shire and Michigan.

Promet lliis i’ll ficrus Walsh (Bassus), Trans. St. Louis Acad, iii, 86. 'J, .

9 . Length 5.5 mm. Black, polished ; central portion of abdomen, legs and
antennae rufous: spot beneath antennae extending on to sides of clypeus, mandi¬
bles, except tips, palpi, tegulae, spot in front, lines beneath each wing, short line
on mesonotum, transverse line on prosternum, diagonal line on mesopleurae, all

TRANS. AM. ENT. SOC. XXII.

FEBRUARY, 1895.

22

G. C. DAVIS.

the trochanters and four anterior coxae, yellowish white. Abdomen beyond first
segment strongly compressed ; first segment black, densely punctured, second
segment entirely rufous ; third, fourth and fifth rufous, with black spot above ;
remaining -segments black ; venter rufous, except at tip. In one specimen the
pleurae have a rufous dash on them.

From Walsh’s description of the % , it differs only in having the whole clypeus,
all coxae and trochanters, line on mesonotum, extending into a hook in front,
yellowish white; antennae brown-black, with scape beneath yellowish; and ter¬
minal third of segment two and all of segment three of the abdomen, rufous.

Male not seen ; female described from two specimens sent me from
Algonquin, III., by Dr. Nason, who has aided me greatly in finding
many of Walsh’s species. Whether these females belong with the
male type is somewhat doubtful, though probable.

ZOOTREPHES Foerster.

Abdomen black, segments more or less margined with white.

Pleurae and sternum honey-yellow . frigid us Cr.

Pleurae and sternum black.

Posterior tibiae fulvous, black at tips ; segments of the abdomen with narrow
inobscure yellow margins on segment 2 . sc;i}>u 1st I llN Prov.

Posterior tibiae entirely fulvous, segments of abdomen with broad yellow

margins . maudae n. sp.

Abdomen with the segments more or less rufous.

First segment of the abdomen longitudinally carinated with a groove between.

Scutellum yellow . saginutus Prov.

Scutellum black . autennatus n. sp.

First segment of abdomen even and oval.

Scutellum and base of abdominal segments black. iclineumonides Prov.

Scutellum black or reddish, segments 3 and 4 always rufous.

moutauus n. sp.

Scutellum yellow, segments 2 and 3 rufous . cingulatns Prov.

Zoof replies frigid us Cr. (Bassus), Trans. Amer. Ent. Soc. ii, 111, 9 .

9 . — Length 5.5 mm. Black, with pleurae, entire sternum and legs, except pos¬
terior tibiae and tarsi, honey-yellow; labrum, tegulae, base of the segments of
posterior tarsi, posterior tibiae at base and a broad annulus in the centre, white.
Thorax and first abdominal segment strongly carinated ; the tip of the segment
shows some evidence of the cross suture.

Only Mr. Cresson’s type from Hudson Bay seen ; S not known.

Zoot replies scapufatus Prov. ( Bassus ), Faune Ent. Can. ii, 798, 9-

9 . — Length 6. mm. Black, robust, with mouth, large orbital lines in front,
tegulae, spot in front, spots above on mesonotum, spot on scutellum and front coxae,
yellowish white. Legs fulvous, with tips of posterior tibiae and their tarsi fuscous.
Metathorax coarsely punctured, areolated, and aciculated in the large centrax
area. Abdomen compressed at the extremity, segments 1, 2 and 3 coarsely punc¬
tured ; segment 2 with a narrow, rather unobscure, pale yellow line at tip.

Provancher’s type, collected at Cape Rouge (near Quebec), Can.,
is the only specimen known to me.

AMERICAN HYMEN OPTERA.

23

Zootreplies inconstans n. sp.

<p . _ Length 5 mm. Black and shining, except metathorax and first three seg¬

ments of the abdomen, which are coarsely punctured. Large orbital lines m
front, cheeks beneath, scape beneath, sometimes a spot on the front ; mouth, ex¬
cept tips of mandibles, teguke, spot in front, another beneath, a small line on
mesonotum, scutellum, all the trochanters, tips of the cox® and margins of ab¬
dominal segments after the first, light yellow. In some specimens the bands are
interrupted in the centre ; the bands are broadest on segments 2 and 3, sometimes
broad on 4; coxae and posterior femora black at base, remainder ol legs a dusky
honey -yellow ; antennae long, pubescent, dark brown. Wings hyaline, stigma
large, dark brown. Abdomen, tibiae and tarsi covered with short, distinct pubes-
CenCe*

^ e _ Stature and sculpture as in £ • The color markings ditler as follows : en-

tire face, four anterior coxae, triangular spots on prosternum, a crescent extending
onto pleurae back of middle coxae, line, beneath posterior of wings, small spot on
scutellum, post-scutellum, and a short line at tip of first abdominal segment, yel¬
lowish white. The posterior femora are not black at base.

Described from four female and two male specimens from Wash¬
ington, Nevada, Colorado and Massachusetts.

Zootreplies saginatus Prov. (Bassus), Faun. Ent. Can. ii, 432, 9 .

£ _ Length 4 mm. Head, thorax and basal segment of abdomen, except tip,

black; three terminal segments reddish black; remainder of abdomen, most ot
the legs and antenna:, except basal joint, rufous; posterior coxse variable with
black and yellow, the others and all the trochanters yellow. The head and thorax
are marked with yellow as follows: short- orbital lines, mouth, teguke, line below,
spot on mesonotum and scutellum.

^ .—Face, scape, prosternum and a stripe on mesopleurse yellow, in addition to
markings of 9 •

Two female and one male specimens from Canada and New Hamp¬
shire.

Zootreplies antemiatus n. sp.

o’ —Length 5 mm. Head and thorax black, with narrow orbital lines each
side of an ten me ; mouth, including clypeus, teguke, small spot m front and spot
beneath each wing, light fulvous. Abdomen rufous, except basal half of first
segment and two terminal segments, which are black. Antenna; entirely rufous,
four anterior coxa; and all the trochanters, yellow; remainder of legs rufous.
Metathorax more or less rufous. Abdomen broad, clavate, depressed to the fifth
segment then compressed ; first segment and metathorax with high, coarse carinae ;
margins of segments 2 and 3 and all of the following polished.

% .—Differs only in having the entire face yellow.

Described from two female and two male specimens from Michigan,
Illinois, South Dakota and Montana.

Zootreplies icliueunioniiles Prov. (Bassus), Faune Ent. Can. ii, 432. 9 'S •

9 .—Length 4.5 mm. Black, with the abdominal segments more or less mar¬
gined with rufous; mouth, anterior orbits, teguke, spot in front, line beneath, line

FEBRUARY, 1895.

TRANS. AM. ENT. SOC. XXII.

24

G. C. DAVIS.

on mesonotum, spot on scutellum, trochanters and anterior cox?e yellowish white ;
four posterior cox* more or less black at base : remainder of legs fulvous. Ab¬
domen depressed, lirst segment rugose, same of 2 and 3, except tips ; segments 2
and 3 with a reddish band on the border.

This species is quite uncertain, and is only provisionally placed
here. A female before me that differs in having no yellow markings
on mesonotum and scutellum and with segment 4 of abdomen also
margined with rufous belongs here, and led me to think that Pro-
vancher’s species belongs in this genus, although the color markings
differ and nothing was said of the carinated metathorax and basal
segment of the abdomen. Several male specimens which answer the
description have the face smooth and belong to Promethus, where
the species probably belongs.

Zoofrcphes liionf aims n. sp.

9 .• — Length 5-6 mm. Head, thorax, base and tip of abdomen black ; remain¬
der of abdomen and most of legs rufous. Large spot on centre of front ; mouth,
tegul*. spot in front, line below cuneiform line on margins of metanotryn, some¬
times posterior margin of scutellum, trochanters and four anterior cox* pale
yellow ; antenn* reddish brown, scape yellowish beneath ; first segment of ab¬
domen, except the tip, sometimes base of second segment, more or less of segment
5, and all of segment 6, black ; metathorax faintly carinated, segments 1 and 2
of abdomen aciculated ; segments beyond 3, compressed.

% . — Differs in having the face, scape beneath, and usually all the cox* pale
yellow.

Described from nineteen female and twenty-three male specimens.
All from Montana, except two from Nevada and one from South
Haven, Mich.

Zootrephes cingulatus Prov. (Baasus), Faune Ent. Can. ii, 798, $>.

9. — Length 5.5 mm. Black, with abdomen in part rufous; mouth except
mandibles at base, large anterior orbits reaching above the antenn*, tegul*, spot
in front, line beneath, line on mesonotum, line between meso- and metapleur*,
pyramidal spot on scutellum, trochanters and extremity of the cox*, pale yellow ;
rest of the cox* black ; legs fulvous, posterior tarsi dusky. Abdomen robust,
first segment rugose, segments 2 and 3 rufous, and 4 and 5 margined with rufous,
remainder black.

'J, —Has scape beneath, entire face, prosternum, crescent on anterior meso¬
notum, four anterior cox* and margins of first five abdominal segments, pale
yellow.

Female described from Provancher’s type ; one male from New
Hampshire.

AMERICAN HYMENOPTERA.

25

XY RPHOCTO A US Foerster.

Posterior tibiae black, pale at base . ugili** Cr.

Posterior tibiae fulvous, black at tip.

Pleura rufous, scutelium yellow . . . pleuraliw Cr.

Pleura and scutelium black . robustus n. sp.

Posterior tibiae fulvous, tarsi sometimes dusky.

Abdomen entirely black.

Face with white orbital lines . gillettii n. sp.

Face entirely black . mellipes Prov.

Abdomen black, with segments margined with white. • • -liiaculitrons Cr.
Abdomen more or less rufous.

Thorax black . pacified* Cr.

Thorax red . cressonii n. sp.

SyrphoctonuN agilis Cr. (Bassus), Trans. Amer. Ent. Soc. ii. 111, 'J, .

Baums frontalis Cr., ibid. 9 •

Mesolius junctus Prov., Faune Ent. Can. ii, 797, 9 •

9 . — Length 5 mm. Black, with brown antennae ; spot on front, spot on man¬
dibles, tegulae, spot in front, line beneath, triangular spot on sides of mesonotum,
tip of scutelium, line between meso- and metapleurae and base of posterior tibiae,
white. Legs, except posterior tibiae and tarsi, ferruginous.

Differs in having the entire face, underside of antennae, entire sternum,
front of pleurae, post-scutellum and two spots at base of third segment of abdo¬
men, yellow. Legs vary from rufous to a light fulvous.

Abdominal segments in the 9 tend to show more or less signs of rufous, but in
the 'J, this characteristic becomes still more marked.

Thirteen female, three male specimens; Illinois, Michigan, South
Dakota, New Hampshire, Massachusetts, New Jersey, Pennsylvania,
North Carolina and Ottawa, Canada.

Syrphocton ns pleuralis Cr. (Bassus), Trans. Amer. Ent. Soc. ii, 111. 9 •
Bassus syrphicola Askm., Proc. U. S. Nat. Mus. xii, 439.

9 . — Length 7 mm. Black, with spot on front, mouth, tegulae, spot in front,
broad line on margins of mesonotum, scutelium, post-scutellum, and more or less
distinct margins on abdominal segments, yellowish white. Legs, except posterior
tibia; and tarsi, venter, most of pleura and most of metathorax, honey-yellow.

. — Same as 9 » but the face, cheeks, antennae beneath, and the entire ventral
and lateral portion of the thorax, except large black spot beneath wings, are yel¬
lowish white.

Two female and one male specimens from California and Ohio.

Syrplioctonus robustus n. sp.

^ . — Length 7.5 mm. Black, with face, antennae beneath, spot on cheeks,
mouth and tegulae, light yellow. Legs honey-yellow, except tips of posterior
tibiae and tarsi, which are nearly black. The entire body is rather coarsely punc¬
tured, with metathorax and first three segments of abdomen particularly so.
Basal segment of abdomen with an elliptical ridge reaching nearly to the tip :
segments of abdomen broad, depressed, narrowing at the tip after the third seg¬
ment ; antennae reddish brown above. Wings hyaline with stigma and veins,
except costal at base, brown.

TRANS. AM. ENT. SOC. XXII.

(4)

FEBRUARY, 1895.

G. C. DAVIS.

26

Described from one specimen from Washington. Type in the
Cresson collection.

S.vrplioHoims gilloMii n. sp.

9 . — Length 4.5 mm. Black, shining, with short yellowish pubescence; broad
orbital lines in front, mouth, tegulje, spot in front and line beneath each wing,
yellowish white. Legs honey-yellow ; ocelli prominent ; antennae black, reddish
brown beneath. Wings hyaline, stigma and veins brown. Head and mesothorax
very broad ; metathorax, all of first and second abdominal segments and basal
half of the third and fourth, coarsely and deeply punctured; segments of abdo¬
men about equal width throughout.

Described from one female sent by Prof. C. P. Gillette, of Colo¬
rado, to whom I take pleasure in dedicating this species.

Sy rpliocl on 1 1* mellipes Prov. (Bassus), Add. Faune Hymen. 429.

9 . — Length 3.7 mm. Black, with legs pale yellow ; metathorax hicarinate :
first segment of abdomen aciculated and second punctured.

Canada. Type not seen, but probably does not belong here.

Kyi’plioclomiM maciilifrons Or. ( Bassus ), Proc. Ent. Soc. Pliila. iv, 272, 9 •
Bassus sernifasdatus Walsh, Trans. St. Louis Acad, iii, 87, ^ .

9 .—Length 5-7.5 mm. Black, with a spot beneath antennae, triangular spot
on each side near eyes, mouth, tegulae spot in front, line beneath, cuneiform line
on mesonotum, scutellum, post-scutellum, and interrupted margins on abdominal
segments, yellowish white. Legs rufous, except posterior tarsi, which are nearly
black.

£ . — Has face, scape beneath, cheeks beneath, four anterior coxa* and trochan¬
ters, crescent on mesosternum and longitudinal dash on pleurae, yellowish white;
other markings as in 9 •

Fourteen specimens from California, Nevada, Colorado, Montana
and Illinois.

!S.y rplioHonus pa<*i liens Cr. (Passns), Proc. Acad. Nat. Sci. 1878, 376, 9-
Bassus xanthopsis Ashm., Proc. U. S. Nat. Mus. xii, 440, £ .

£ . — Length 5-6 mm. Black, with the central part of abdomen rufous; oblong
spot on front, mouth, tegulae, spot in front, line beneath, large cuneiform spot on
margins of mesonotum, stripe between meso- and metapleurae; trochanters and
more or less of coxae, yellowish white; most of posterior coxae and base of the
others, black ; remainder of legs rufous. Abdomen, with tip of segment 2, all of
segment 3, and more or less of segment 4, rufous; segments l and 2 roughly
sculptured.

^ . — Differs in having the entire face, scape beneath, prosternum, anterior mar¬
gin of mesosternum continuing onto pleurae, longitudinal stripe on lower meso-
pleurae, more or less of four anterior legs and a more or less distinct yellow band
or two dots at base of third abdominal segment, yellowish white; fourth and
fifth segments of the abdomen usually black, margined with rufous.

Two female and seven male specimens from California, Nevada,
Washington and Vancouver’s Island.

AMERICAN H YM ENOPTERA.

Syrphortoims cressonii n. sp.

9 • — Length 6 mm. Rufous, except head, posterior tarsi and segments of the
abdomen beyond the third, which are reddish black. The following are yellow
tinged with red : large central spot beneath antenme on front, elypeus, mandi¬
bles, except teeth, which are black, palpi, tegula?, spot in front, lines on margin
of mesonotum, scutellum and post-scutellum. Wings hyaline, stigma large,
brown; first three segments of abdomen finely punctured, the second somewhat
aciculated at the sides. The form is broad, plump and short ; antennae wanting.

Described from one specimen from Nevada. This specimen is in
the Cresson collection, and is dedicated to Mr. E. T. Cresson for the
many kind favors shown me in the study of this tribe.

EXIZEMIDI Foerster.

Euizemuni tibiale Or. (Bassus), Trans. Amer. Eut. Soc. ii, 110, 9.

9 • — Length 6 mm. Black, with mandibles, palpi, costae, tegulse, faint line
beneath, spots on margin of mesonotum. parallel capillary lines back of scutellum
and post-scutellum, more or less of trochanters and base of posterior tibia;, white ;
posterior tarsi, tibiae, except base, and tips of femora black ; remainder of legs,
labium, mesonotum, with lower part of pleurae and scutellum, honey-yellow ;
antennae brown. Wings slightly dusky. Abdomen with segments 1 and 2 and
most of 3, coarsely punctured, rugose, and coarsely aciculated at the base of the
segments; two marginal and two central carinae on segment 1. the two latter ex¬
tending close together about half the length of segment 2.

% . — Differs in having the sternum and scutellum black ; the entire face, scape
beneath, prosternum, anterior part of mesonotum, trochanters and four anterior
coxae, yellowish white ; rest of legs fulvous (except posterior tibiae and tarsi, which
are the same as with the 9 ) and the three basal segments of the abdomen, which
are coarsely longitudinally aciculated. This last character, with the different
color markings, may make a new species when more material has been examined.

Tli ree female and one male specimens from Illinois, Montana,
Colorado and Canada.

HOMOTROI’US Foerster.

Abdomen black, or with yellow markings.

Posterior- co xse black, or black and yellow . bnmeralis Prov.

Posterior coxa; same color as femora.

9 with yellowish white capillary lines on scutellum and post-scutellum, and
face without spot; without yellow markings on the abdomen.

bicapillaris Walsh.

9 with sides of scutellum and usually the capillary lines yellowish white,
face with white spot; % with yellowish white band or spots at base

of third abdominal segment . var. albopict 11s.

Abdomen more or less rufous.

Face without orbital lines (9) . palli penilis Prov.

Face with orbital lines ( 9 ) or entirely yellow % . decora 1 11** Cr.

Ilomotropns haiueralis Prov. (Bassus), Faune Ent. Can. ii. 429, % .
Bassus fascitarsus Prov., ibid. 430, 9 •

9 ■ — Length ti mm. Black, with elongate spot on face, sometimes obscure or-

TRANS. AM. ENT. SOC. XXII.

FEBRUARY, 1895.

28

G. C. DAVIS.

bital lines, mouth, tegulae, spot iu front, line below, cuneiform band on margins
of mesonotum, tip of scutellum and band between mesor and metapleurae, yellow¬
ish white. Legs ferruginous, coxae black and yellowish white ; posterior tarsi an 1
tips of tibiae fuscous. Abdominal segments 1, and 2 and 3 at base finely rugose ;
tips of segments obscurely margined with red in some specimens.

% . — Differs in having the lace, scape beneath, prosternum, stripe on front of
mesopleurae, four anterior coxae and trochanters, and two spots or a band at the
base of third abdominal segment, yellowish white. Iu a few specimens this band
is absent, while in others there is also a band at the base of the fourth segment.

Fourteen female and forty-six male specimens from S. California,
Nevada, Washington, Colorado, Montana and Canada.

II oinof ropus bieapillaris Walsh {Baums), Tr. St. Louis Acad, iii, 88, 9 •
Bassus belangeri Prov., Faune Eut. Can. ii, 430, 9 •

Bassus pectoralis Prov., ibid. 431, £> .

9 . — Length 6 mm. Black, mouth, tegulse, spot in front, line beneath, broad
line on margins of mesonotum, line between meso- and metapleura; and two capil¬
lary lines extending from wing to wing, passing over the tips of scutellum and
post-scutellum where they become somewhat broadened, yellowish white ; pleurae,
scutellum and clypeus have a tendency to be more or less rufous. Legs pale
rufous, with posterior tarsi and tips of tibiae, black. Abdomen with first segment
scabrous and base of second coarsely aciculated, remainder of segments finely
punctured ; metathorax with long white pile.

'J, . — Differs in having the face, scape beneath, hand on anterior part of meso-
sternum, extending onto pleurae, and four anterior coxa- and trochanters yellowish
white.

Four female and one male specimens from Colorado, Illinois, New
Hampshire and Canada.

Var. a I bop id us differs in the female having a large white spot on the front
and the sides of the scutellum yellowish white, and in the %, having, besides the
markings on the sides of the scutellum, a yellowish white band at the base of the
third abdominal segment. The first abdominal segment varies from finely scab¬
rous to coarsely aciculated.

Described from six female and three male specimens from Colorado,
Washington, Canada and Michigan.

This may be a separate species, but as the specimens are so variable
iu the above markings, it seems best to only make them a variety of
bieapillaris.

Homotropus pallipenuis Prov. (Bassus), Faune Ent. Can. ii, 431, 9 •

9 . — Length 5.5 mm. Black, with abdominal segments 2, and 3 and 4 at tip at
least, ferruginous; moutti, small spot in front, costae, tegulse, spot in front, line
beneath, cuneiform line on margins of mesonotum, scutellum, post-scutellum with
capillary line to wings, suture between meso- and metapleurae, trochanters and
four anterior coxae yellowish white : posterior coxae black, tipped with yellow ;
tips of posterior tibiae and their tarsi dusky; remainder of legs honey-yellow.
Wings hyaline, stigma yellowish brown ; antennae brown. Abdomen closely and
finely punctured.

AMERICAN HYMENOPTERA.

29

Description taken from Provancher’s type and from one specimen
in Mr. Cresson’s collection, both females and from Canada ; % not
known.

Homotropus tlecoratus Cr. (. Bassus ), Proc. Acad. Nat. Sci. Plnla. 1878,
375, %.

<p _ _ Length 6 mm. Head and thorax black ; abdomen, except base and tip,

rufous : anterior orbits, scape beneath, spot below, mouth, tegulse, spot in front,
line beneath, cuneiform line on margins of mesonotum, posterior margin ot scu-
tellum and most four anterior coxae light yellow ; remainder of legs, except poste¬
rior tarsi, which are dark brown, rufous.

^ , _ Differs in having the entire face, marginal lines on mesonotum recurved

into parallel lines above, transverse and longitudinal lines on mesosternum and
mesopleurse and all coxae and trochanters liglit yellow. The abdomen usually
has more black on it in the % .

Eighteen female and seven male specimens from Nevada and
Southern California.

LIST OF BASSINI.

BASSUS Grav.

1. ketatorius Fabr.

tripicticrus Walsh.

a. sycophanta Walsh.

b. terminal is Davis.

2. orbititalis Cr.

cinctulus Cr.
albicoxis Prov.
amcenus Prov.
orbitalis Ashm.

3. scutellaris Cr.

4. concinnus Cr.

5. pulchripes Prov.

PROMETHUS Foers.

1. costalis Prov.

longicornis Prov.
adculatus Prov.
auricidatus Prov.

2. elongatus Prov.

3. ruflcrus Walsh.

ZOOTREPHES Foers.

1. frigidus Cr.

2. scapulatus Prov.

3. inconstans Davis.

4. saginatus Prov.

5. antenuatus Davis.

6. ichneumonides* Prov.

SYRPHOCTONU3 Foers.

1. agilis Cr.

frontalis Cr.
junctus Prov.

2. pleuralis Cr.

syrphicola Ashm.

3. robustus Davis.

4. gillettii Davis.

5. me Hi pcs® Prov.

6. maculifrons Cr.

semifasdatus Walsh.

7. pacificus Cr.

xanthopsis Ashm.

8. cressonii Davis.

ENIZEMUM Foers.

1. tibiale Cr.

HOMOTROPUS Foers.

1. humeralis Prov.

fusdtarsus Prov.

2. bicapillaris Walsh.

belangeri Prov.
pectoralis Prov.
a. albopictus Davis.

3. pallipennis Prov.

4. decoratus Cr.

montanus Davis,
cingulatus Prov.

* Only provisionally placed in the genus.

TRANS. AM. ENT. SOC. XXII.

FEBRUARY, 1895.

30

G. C. DAVIS.

Bassus areolatus Prov. = Lampronota punctulata.
“ bouleti Prov. == Erromenus pedalis.

“ cylindricus Prov. = Pimpla annulipes 'J, .

“ dorsalis Prov. = Plectiscus.

“ gibboms Say = Microdus.

“ limUaris Say = Earinus.

“ sanctus Say = Microdus.

*■ euurse Ashm. = Tryphon.

“ virginiensis Ashm. = Tryphon.

DESCRIPTIONS OF A FEW NEW PIMPEOLE.

BY G. C. DAVIS.

Eainpronota sexcarinata n. sp. 9 • — Length 10 mm. ; ovipositor 8 mm.
Body entirely black, except margins of abdominal segments, which are sometimes
rufous and covered with fine yellowish hair most conspicuous on the front and the
least so on the abdomen ; antennse slender, reddish brown. Legs honey-yellow,
posterior tibiae and tarsi dark brown. Wings hyaline, nervures and stigma brown,
teguhe rufous to yellow, areolet wanting ; parapsidal grooves distinct on meso-
notum, converging into a broad, thickly punctured depression in front of scutel-
lum ; metathorax rugose and with six longitudinal carinae, the two outer ones
running just below the oblong spiracles; first segment of abdomen rugose, oval
near base ; segments 2 and 3 finely punctured.

Described from four female specimens taken in Michigan.

Eainpronota angusta n. sp. 9 • — Length 7 mm. ; ovipositor 7 mm. Body
black, thickly punctured ; orbital lines from vertex to insertion of antennae, cly-
peus, base of mandibles, palpi, teguhe, triangular line on margins of mesonotum,
anterior coxae and four anterior trochanters pale yellow : remainder of legs ru¬
fous, except four posterior tarsi, tibiae, all but base, and base and tip of femora,
which are dark brown, tarsal claws small ; antennae slender, black. Wings hya¬
line, areolet small, triangular; occiput full, ocelli elevated; front with a central
carina extending from antennae to clypeus; mesonotum dull, closely punctured,
without parapsidal grooves ; metanotum rugose, without carina ; first segment of
the abdomen coarsely rugose with a central longitudinal carina, second and most
of third segment finely rugose.

Described from one female taken in July at the Michigan Agri¬
cultural College.

Lampronota hullata n. sp. 9- — Length 11 mm.; ovipositor 5 mm.
Black, with abdominal segments 2 and 3, in part, rufous. Head, thorax and legs
coarsely punctured and covered with sparse, long, white pile; antennae black, the
front with a broad elevated ridge extending from their base to the clypeus ; scu-
tellum elevated, prominent; with a shining tubercle at the tip. Wings yellowish,
dusky ; areolet present, petiolate, with a large bulla on the outer vein at base so
that it makes the areolet appear incomplete. The upper third of the second re¬
current nervure is also covered with a bulla and is peculiar in that it has a branch
about one-third mm. long extending out toward the apex of the wing in this bulla.

AMERICAN IIYMENOPTERA.

31

The abdomen is quite broad, sub-compressed at apex, shining, first segment punc¬
tured at sides, 2 and 3 rufous, with sides and more or less of a band acioss the
middle of the segments black ; four anterior legs with the tibia; and tarsi dirty
fulvous ; posterior legs with base of the tibia} and tarsal joints, beyond the middle
of the second, dirty white.

Described from one female sent by Prof. O. B. Johnson, Beattie,
Washington.

Lampronota toibrevicineta n. sp. 9. — Length 11.5 mm.; ovipositor
broken. Head and thorax black, abdomen mostly rufous; two short orbital lines
on front, light yellow ; clypeus, mandibles and palpi ferruginous ; coxae, trochan¬
ters and posterior tibiae and tarsi black; remainder of legs rufous. Wings yel¬
lowish fuscous; areolet medium petiolate. Head and thorax coarsely punctured ;
metanotum without carina. Abdomen shining, sparsely punctured, segments 1
and 2 with a slight central longitudinal depression ; segment 1 black, with the
terminal fourth rufous, 2 and 3 entirely rufous; following segments more or less
stained with black.

Described from one female taken at the Michigan Agricultural
College. It comes nearest to L. Montana.

Lampronota nigropicla n. sp. V— Length 10 mm. Black, with the
following parts lemon-yellow : entire face below antennae, scape beneath, mouth,
prosternum, line on collar, small spot on margins of mesonotum, tegulae, spot in
front, spot beneath, scutellum, apex of first abdominal segment, second segment,,
except a black spot iu the centre, all of third segment, base of fourth, four ante¬
rior legs and tarsi, trochanters, basal two- thirds of tibiae and base of femora of
hind legs : antennae brownish fulvous, growing lighter toward the tip. Wings
hyaline, without areolet. Thorax and abdomen shining, finely and sparsely
punctured ; spiracles on basal segment of the abdomen not tuberculate.

Described from one male taken at the Agricultural College, Mich.

Lampronota annnlata n. sp. % . — Length 11 mm. Black, with yellow
markings; entire head, except occiput, and vertex around ocelli, entire sternum,
prothorax above, lines on mesonotum bordering the entire sides and returning
parallel half way to the scutellum, teguhe, spot in front, spot below, line between
meso- and metapleurae, scutellum and post-scutellum lemon-yellow; posterior
coxa; lemon-yellow with a black stain above. Abdomen with segment 1 black,
except two fulvous spots on apical margin ; segment 2 reddish black, with two
spots at base and a broad apical margin light ferruginous; segments 3 and 4
entirely ferruginous, and the remainder reddish black. First segment grooved
at base, spiracles tuberculate; antenna} dark brown, with scape beneath and a
broad annulus above, lemon-yellow. Wings yellowish hyaline, areolet wanting ;
mesonotum punctured, rufous and black; pleurae with a slight rufous tinge;
metathorax rugose, not carinate.

Described from one male taken at Gaylord, Michigan.

Lampronota pallorana n. sp. 9 .—Length 11 mm.; ovipositor 11 mm.
Pale rufous, with yellowish white markings ; antennae black, with segments 10
to 15 white, scape beneath rufous; orbital lines, lower part of front, mouth,
cheeks, gula, entire prothorax with anterior coxae, mesopleurae, tegulae, spot in

FEBRUARY, 1895.

TRANS. AM. ENT. SOC. XXII.

32

G. C. DAVIS.

front, line beneath, parallel lines on mesonotum and scutellum, yellowish white ;
metapleurae and middle coxae are a yellowish red; remainder of legs honey-
yellow. Abdomen smooth, shining, dark rufous. Wings hyaline, nei’vures and
stigma yellowish ; areolet large, triangular. Thorax coarsely punctured.

Described from one female taken at Philadelphia, Pa., by Chas.
W. Johnson.

Xy lonoiiuis iiui iiria* n. sp. 9 • — Length 17 mm. ; ovipositor 10 mm. Dark
reddish brown, with abdomen, beyond first segment, black ; anterior orbital lines,
tubercles on pronotum, line beneath tegulae, band on each side of scutellum and
base of stigma; yellowish white ; four anterior legs and trochanters of posterior
legs ferruginous ; metathorax and basal segment of abdomen rufous, tuberculated
at sides; antennae reddish brown, with scape beneath lighter; cheeks behind
eyes, proplea ne and most of mesonotum, coarsely aciculated ; anterior upper
angles of prothorax tuberculate; metathorax areolated, scabrous. Wings hyaline,
with dusky yellowish spot at the j uncture of the cubitodiscoidal and submarginal,
at the juncture of the submedian with the cubitodiscoidal cells and at the apex
of the anal cell ; basal segment of abdomen scabrous ; remainder finely punctured ;
venter more or less reddish.

Described from one female from Prof. O. B. Johnson, at the Wash¬
ington University, and at his suggestion named as a compliment to
one of his most faithful collectors.

Ilclilliriis adillse n. sp. % .—Length .20 mm. Black, with head and thorax
coarsely punctured, and abdomen finely punctured. Head pilose, deeply excavated
back of an ten me ; an ten me brown-black, basal joint large, nearly as broad as
long; mandibles and palpi rufo-piceous; mesonotum with distinct parapsidal
grooves ; metanotum scabrous, aciculated above base of abdomen, with a central
longitudinal depression. Abdomen smooth, somewhat compressed, with a small
depression on basal segment. Wings yellowish hyaline, areolet large, pentangu¬
lar, four anterior legs from the terminal part of the femora rufo-fulvous ; posterior
tibiae and basal two-tliirds of first tarsal joint rufo-piceous, rest of tarsi reddish
white.

Described from one specimen, from Washington, in honor of
another of Prof. Johnson’s enthusiastic workers.

Aplomerus nasouii n. sp. % . — Length 8 mm. Black; thorax and ab¬
domen decidedly depressed ; orbits broken below the eyes, at the insertion of
antennae and broadly so on the vertex ; clypeus, two dots above on front, base of
mandibles, palpi, tegulae, base of all the tibiae, anterior tarsi and basal half on
first tarsus of four posterior tarsi, yellowish white; remainder of four anterior
legs honey-yellow, and of posterior legs piceo-fulvous ; antennae brown. Wings
hyaline, without areolet, nervures and stigma reddish brown. Thorax broad,
flat; parapsidal grooves distinct; metanotum with small longitudinal cariuae ;
first segment of the abdomen twice as long as the rest, subpetiolate, gradually
expanding ; posterior femora only two-thirds as long as tibiae and very robust.

Described from one male sent by Dr. Nason, of Algonquin, Ill.,
and dedicated to him in recognition of the many fine specimens sent
me from that State.

AMERICAN DIRT ERA.

CONTRIBUTIONS TO THE DIPTEROLOGY OF
NORTH AMERICA.— I. SYKPHID/E.

BY C. H. TYLER TOWNSEND.

It is proposed, in a series of papers under the above caption, to
give notes and descriptions of North American Diptera in the
Townsend collection, which now forms a part of the University of
Kansas collection of Diptera. The present paper treats of the Syr-
phidse, seventy-five species being enumerated. It is unnecessary to
more than point out the use of describing specimens from different
localities, showing wherein they differ from the original description,
as I have done. By this means variations are tabulated, and the
limits of species determined.

All of the types herein described are to be found in the University
of Kansas collection, as well as all others heretofore described by
the author.

1. Microrion bombi Turinis n. sp.

Length 13 mm. (with abdomen Hexed under) ; actual length 14 mm. Differs
from Willistou’s description of tristis as follows: Front and face of equal width,
metallic green, clothed with pale brassy-yellow pile ; transverse groove of front
distinct. Dorsum of thorax, pleurae, scutellum, and first and second segments of
abdomen shining green, clothed with the same pale brassy-yellow pile, which is
thickest on scutellum and thorax. Scutellum slightly emarginate behind, the
corners corresponding to the spines being obtusely angular. Rest of abdomen
short, black, hairy, more ‘apparent on sides of third segment. Third segment
deep, soft black, but shining, with a slight greenish lustre. Fourth and fifth seg¬
ments uniformly black and shining, with a purplish lustre ; ovipositor pale
brownish, exserted. The abdomen is but little longer than wide. Legs black,
only black hairy, but the hairs of tibia: and tarsi show a golden reflection in ob¬
lique lights; tips of tarsi more brownish. The legs are stout, and the hind meta¬
tarsi are rather broad, but hardly more so than the other joints. Pul villi and
base of claws yellowish. Wings with all the veins broadly and evenly clouded
with flavous smoky ; the narrow spaces left are nearly hyaline.

Dixie Landing, Va. (near Washington, D. C.) June 1. One 9 .

I can hardly identify this with megalogaster Snow, from the differ¬
ence in the wings.

2. Microdoii fiiscipennis Macq., Williston.

Williston describes only the male. The female differs as follows
from his description :

TRANS. AM. ENT. SOC. XXII.

(5)

MARCH, 1895.

34

C. II. TYLER TOWNSEND.

Length 8.5 mm. Face and front very wide ; face clothed with yellowish brown
pile, except a lighter patch above on sides. Front not quite one-half the width
of head, clothed with yellowish pile above and on sides, shining brown and bare
next base of antennae. Antennae yellowish brown ; whole head and body brown,
the abdomen dark brown. Dorsum of thorax with four blackish vittae, the vittae
clothed with black pile. Scutellum dark brown, strongly emarginate on apex.
Hind femora, tibiae and metatarsi blackish, knees narrowly pale yellowish ; mid¬
dle and front femora and tibiae, brown ; knees and bases of tibiae lighter brownish.
All the tarsi (except hind metatarsi) light brownish or yellowish brown. Hind
metatarsi a little longer than the other joints together, thickened, very distinctly
widened, but uot as wide as in the male. Wings strongly fuscous, a little lighter
on inner portions, but still uniformly infuscated. In the left wing the stump of
vein in first posterior cell unites with a stump from the fourth vein, and is thus
continued entirely across the cell, dividing it into two cells. Only a trace of this
abnormal stump of fourth vein is present in the right wing.

Rock Creek, near Washington, D. C., June 15. One female.

3. Microdoii violens n. sp.

Length 10 mm. Almost wnolly light violaceous. Face brilliant vivid green,
with violet reflections in oblique lights. Front dark green with violet reflections,
vertex violet. Dorsum of thorax violet, with green on disc, but whether in vittae
is not apparent from bad preservation; whole abdomen and scutellum of a bright
violet, with almost no green, blue, or coppery reflection. Scutellum with two not
widely separated spines. Legs yellowish brown, with basal half of femora and
last joint of tarsus (posterior) blackish. Wings nearly hyaline, with veins of
anterior outer portions very faintly clouded.

Jamaica (Bowrey . A single specimen, apparently a female.

The face is whitish pilose. Antennae brownish, third joint longer
than first two together. Front but little less than one-third width
of head. This is the first Microdon recorded from the island of
Jamaica. I have examined the descriptions of all the South Amer¬
ican species, including Walker’s, and all the North American and
Mexican species, but am unable to identify this specimen with any
of them. The following species with predominating violet reflec¬
tions, and especially with the face green, preclude my referring it to
them for the reasons named :

M . aurifex Wd., incequali 's Lw., splendens Wd., Willist., differ in
having the spines of scutellum widely separated.

M. Icetus Lw. differs in the tarsi of both sexes being black.

M. eyxniventris Mcq. differs in having a stump of a vein on last
section of fourth vein and on vein closing discal cell, according to
M acquart’s figure.

M. viol ice us Mcq. has scutellum without spines.

M. opulentus Big. has scutellar spines long and stout.

M. crassitarsis Mcq. has legs green, with violet reflections.

AMERICAN DIPTERA.

35

M. august us Mcq. has legs with green reflections, and tarsi black.
When I say that the scutellar spines are not widely separated, I
mean that they are not nearly so remote as shown in v. d. A nips
figure of M. aurifex in the Biol. Cent. -Am., Dipt. iii.

4. Microdon viridis Towns.

San Jose del Cabo, *Baja, Cal. (Cal. Acad. Sci.). One female.
See description in Proc. Cal. Acad. Sci., 1894.

5. Microdon xantliopilum Towns.

California (Acad. Sci. ). Two, % 9 • Differs from megalogaster
Snow by having abdomen yellowish pilose. For description see
Proc. Cal. Acad. Sci., 1894.

6. Clir) sotoxuiii derivat mil Walk.

Fort Collins, Colorado v Gillette). One male I refer to this species.
It is 15.5 mm. long, not including antennae. The pile of thorax
seems to be all yellowish. The yellow on fifth segment encloses an
inverted Y-shaped marking, the base of the Y being confluent with
the narrow anterior black border of the segment. The yellow of
second to fourth segments agrees with Williston’s description.

7. Chrysotoxum lateral c Loew.

Guanajuato, Mex. (A. Duges). One male. This specimen is ap¬
parently the same as those from Mexico mentioned by Williston in
the Biol. Cent.- Am., Dipt, iii, p. 5. It is nearly 12 mm. long, and
agrees in all the particulars there mentioned. Scutellum yellow,
disc glassy, but nearly concolorous. Margin and base of venter
rather broadly yellow, the posterior margin of segments yellow, third
and fourth with a pair of yellow spots. Frontal triangle black,
narrowly yellow pollinose on sides.

8. C'lirysotoxum pubescent Loew.

Constantine, Mich., August 31, one female. Dixie Landing, "N a.,
May 30, one male. I refer these here rather than to ventricosum
because they agree in size and the coloring of the legs, though the
black of fifth segment forms an inverted Y and not a V- I believe
the coloring of the legs is a better specific character than the inter¬
ruption or non-interruption of the band of fifth segment, especially
when combined with size. The length of these two specimens is
12 mm. The second joint of antennae is longer than the first, but
the third joint is no longer in the male than in the female. In all
other respects they both agree closely with Loew’s description.

MARCH, 1895.

TRANS. AM. ENT. SOC. XXII.

C. H. TYLER TOWNSEND.

9. Chrysotoxiun ventricosum Loew.

San Francisco Mountain, Arizona, July 15. One male and two
females. These I refer here rather than to integre, because of the
coloring of the legs, though in two of the specimens ( 2 9 ) the sec¬
ond and third bands are entire, and in one of these ( 9 ) the fourth
band also. Thus two of them have an inverted Y-shaped marking
on fifth segment, and the other a V-shaped. The scutellum is black
across the disc. The fasciae are narrower than in pubescens and
derivatum, thus showing more black on second and third segments.
Length 10-11 mm. The pile at base of abdomen is yellowish, not
black, thus agreeing with C. arcnatum, of Europe, according to
Loew. There is no yellow on hind margin of second segment, or
only the slightest trace in one ( 9 ). They otherwise agree with
Loew’s description.

10. Paragns bicolor Fatr.

Las Cruces, N. Mex., August 19; one female. Length 5 mm.
Thorax, scutellum, and basal angles of abdomen have a slight green¬
ish lustre, the scutellum margined posteriorly with yellowish white.
Abdomen wholly pale red, except these lateral basal angles dark
greenish. The very short white pile is not only apparent on sides
and on fifth segment, but also extends across second, third and fourth
segments in an anterior band, the posterior half (more on fourth)
showing the band of very short black pile. Legs wholly pale red¬
dish, except tips of femora and bases of tibise, light yellow.

11. Pltryssogaster nitida Wied.

Dixie Landing, Va., and Washington, D. C. May 23 and 27,
two males; October 11, one female. The female and one male agree
well with descriptions. The other male has the fourth vein termi¬
nating nearly opposite the end of second, and the frontal triangle is
more finely rugose, yet I would prefer to consider it the same species.

12. Chrysogaster pulcliclla Willist.

Constantine, Mich., September 1, one female. Length 5.5 mm.
Antennae longer than face, second joint fully half as long as third.
Front and face with a coppery reflection ; otherwise agrees well with
description.

13. Syrpliiis n. sp. ?

Fort Collins, Colorado (Gillette) ; one female. I would refer it
to S. pcmxillus Willist. but for the great disparity in size. That

AMERICAN DIPTERA.

37

species is 7 mm. (with some specimens measuring 9 mm. referred,
here by Snow , while the present specimen is 13 mm. The front is
yellow, with a darker reflection ; vertex black. Facial stripe nar¬
row, obsolete above tubercle ; cheeks blackish posteriorly ; pile of
thorax yellowish. Yellow markings of abdomen agree in all par¬
ticulars with Williston’s description of pauxillus, but there are no
spots on front angles of fifth segment. Legs reddish yellow, base of
front and middle femora and all of hind femora except tip, black.
Wings hyaline ; stigma elongate, flavous, occupying all of third
costal cell, except a small clear portion in middle just before end of
auxiliary vein.

14. Sphseroplioria n. sp. (?) — aft. cylindrica Say.

One female differs from S. cylindrica as follows :

9 . — Length about 6 mm. ; of wing, 5 mm. Face wholly light yellow, cheeks
with a blackish line bordering lower margin of eyes, oral margin narrowly black¬
ish on edge. Front black, but the yellow of face extends up on each side about
half the length of front. Pleurae greenish yellow above, shining greenish black
below. Abdomen deep shining black, a slightly interrupted yellow band across
second segment; a similar, but entire yellow band across third and fourth seg¬
ments, that on fourth situated more anterior to middle of segment. Fifth seg¬
ment with a decidedly interrupted (in middle)!yellow band near front border, the
inner ends of the yellow being swollen. Sixth segment yellow, with five blackish
spots. Seventh segment yellowish, brownish on median base. Venter and legs
light yellow, the hind tarsi brown, middle and front tarsi with a slight brownish
tinge. Wings hyaline, longer than abdomen, stigma pale yellow.

Fort Collins, Colorado (Gillette).

This comes near to Williston’s var. (c.) 9 from New England,
mentioned in his description of S. cylindrica (see monogr. p. 105).
It may be the 9 of this species.

15. liacclia elavata Fabr.

Bath, Jamaica (E. M. Swainson). One male I identify as this
species. The face, however, has a steel-bluish ground color, being
whitish pollinose on sides, but showing a bluish reflection. First
abdominal segment is blackish, but with a bluish reflection. Vertex
bluish black. Dark portions of abdomen, except first segment,
opaque brown. Length nearly 1 0 mm. ; otherwise agrees well with
Williston’s description of B. babista Walker, which is a synonym.
The facial tubercle, however, is not so strongly pronounced as in
Williston’s figure of the head of babista 9 . The scutellum is
brownish yellowish, with a slight metallic greenish reflection.

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

38

C. H. TYLER TOWNSEND.

Las Cruces, N. Mex., June 7 ; one female. This specimen seems
quite different from the Jamaica male, having the face clear creamy
yellowish without any bluish reflection whatever. The scutellum is
yellow, and very plainly brown across disc in a transverse band.
All the black portions of abdomen shining black. Length only 8 mm.

Two other specimens, S 9 , in Mr. C. B. Taylor’s coll, agrees well
with description. They are from Constant Spring, near Kingston,
Jamaica, December 9.

C. W. Johnson (in MSS.) has taken and identified this species
from Rock Fort, near Kingston, Jamaica.

16. Baccha lemur O. Sack.

Las Cruces, N. Mex., June 7 ; one male. It agrees well with de¬
scription. Length 9 mm. Face and frontal triangle wholly me¬
tallic greenish black, faintly whitish pruinose on sides, with no yel¬
lowish ; halteres with darker knobs. Abdominal cross bands light
blood-reddish. Femora and tarsi more brownish. The cross band
of wings extends posteriorly to anal cell, which it does not quite
touch, following along the outer side of the posterior cross-vein at
distal end of second basal cell. Extreme proximal end of submar¬
ginal cell with just a trace of hyaline in the angle. This is appar¬
ently the case with Osten Sacken’s specimens, but is not quite clear
from the descriptions.

17. BaccUa sagittifcra Austen.

Cinchona, 5000 feet, Jamaica. Described by Mr. E. E. Austen,
of the British Museum, in Proc. Zook Soc. London, 1893, pp. 144-
145, pi. iv, fig. 14, from a single female, taken in June.

18. Bacelia tardietius Walk.

Dixie Landing, Ya. (near Washington, D. C.). One male, Au¬
gust 19. Length 10 mm. Agrees well with Williston’s description,
except as follows : Hind tarsi wholly, other tarsi on distal half,
brownish. The dark brown anterior border of wings fills out the
first basal cell (not the first posterior) and just enters the proximal
end of the first posterior, thus passing a little beyond the anterior
cross-vein, thence along, but not exceeding ( and at first not quite
touching) third vein to tip of wing. In addition to the hyaline spot
in marginal cell, there is a faint, interrupted, hyaline streak in sub¬
marginal cell, nearly obsolete, except posteriorly in the left wing.

AMERICAN DIPTERA.

39

19. Oc} pliiiniis diniidiuf 11* Fab.

Kingston, Jamaica. One female, taken March 18, in coll. C. B.
Taylor. Length 7 mm. The abdomen has a purplish reflection.

20. Oyvptainiis fuMCipciinis Say.

Jamaica (Bowrey) ; one male. Agrees well with Williston’s de¬
scription. The subapical hyaline triangle of the wings is normal,
the rest of the wings wholly brown, with two or three faint and
short streaks near middle, the axillary and anal (angle regions
paler.

A female in Mr. C. B. Taylor’s coll., taken in Kingston, April 12,
appears to belong to the var. fascipennis Mcq., the proximal half of
the discal cell being hyaline.

21. Orj ptauuis iris Austen.

Cinchona, 5000 feet, Jamaica. One female, taken in June, is de¬
scribed under this name by Mr. E. E. Austen, of the British Mu¬
seum, in Proc. Zool. Soc. London, 1893, pp. 133-134, pi. iv, fig. 1.

22. Khingia nasica Say.

Fort Pendleton, W. Va. ( Pergande), September 7. One male.
Roslvn, Ya., August 21, one male. The face is rather brownish
yellow, or yellowish. Scutellum in one is shining black on sides,
not on base ; in the other black on sides and base. Wings with a
flavous tinge anteriorly.

23. Volucella abdominal!* Wied., Auss. Zweifl. ii, 196.

Jamaica (Bowrey . Seven specimens, two females and five males.
Bath (Swainson). There is considerable difference in size and some
in coloring between the specimens, but I am inclined to refer them
all to the same species. The smallest (two males) are 13 mm., but
most of them are larger (one is 14 mm., and the other four are 15
mm.).

Length 13-15 mm. Sides of thorax, pre-scutellar marking and scutellum light
brown, in some cases (two small males) nearly flavous. The males have disc of
thoracic dorsum shining black, but in the females it is more reddish. Abdomen
cupreous brown (smaller males) or shining violaceous bluish, venter concolorous.
Wings are flavous on anterior portion of basal half, with a moderately square,
brown, or dark brown stigmal marking. This marking is, however, in four of the
males only flavous.

This is the species mentioned by Cockerell on p. 259 of vol. i,
Journal Inst. Jamaica, as “ Volucella spiniger [British Museum].”
Though the specimens seem to have been so determined at the British

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

40

C. H. TYLER TOWNSEND.

Museum, still I am confident that they are abdominalis Wied., and
not spinigera Wd. (for descr. of latter see Wd., Auss. Zw. ii, 197-98).
Specimens in C. B. Taylor’s coll. Jamaica.

In MSS. Mr. C. W. Johnson identifies two specimens which he
took in Kingston as V. purpurascens Loew., but they are doubtless
this species.

•24. Volucella anna Willist.

Williston’s description is drawn from a single male. The female
differs as follows, according to my specimen :

Length slightly over 13 mm. Antennae light brown, first joint black. The
third joint resembles the description given by Williston for the females of V.
comstocki, as on its widest part it is nearly twice as wide as on its narrowed portion.
Front and vertex light brown, yellowish or golden whitish pilose, ocellar spot
black. Dorsum of thorax with considerable yellowish pile anteriorly. Scutellum
with a milky bluish reflection in oblique lights, and somewhat the same reflection
on abdomen. Costal cells not so brown, slightly flavous at base and just distad
of the small brown stigma. Clouds on cross-veins, and furcation of veins two
and thi-ee very faint.

Las Cruces, N. Mex. One female taken on flowering shrub on
mesa, April 18.

25. Volucella apicifera u. sp.

Length 14 mm. 9 • Whole face and front pale whitish yellow, a rather faint
stripe on cheeks light brownish, no facial stripe, ocellar spot blackish. Antennae
wholly yellowish red, third joint moderately notched and much widened basally,
arista plumose above, but only shortly so below. Face with short yellowish pile,
front with the yellow pile mixed with black, especially at vertex. Face nearly
straight, receding conically below, tubercle not developed. Very near V. isabellina
Williston with the description of which it agrees in the wings, thorax and abdo¬
men, except as follows : Parallelogram in front of scutellum, and lateral stripe
of thorax, yellowish and very distinct, same color as scutellum, but latter with
black pile. Hardly a trace of black in pile of post-alar callosities. The black
of thorax has two grayish pollinose median vittse. Pleune thickly whitish yel¬
low pilose. Posterior black margin of second segment not obsolete on middle,
quite uniform in width throughout, except rather abruptly widened at lateral
ends. The yellow of abdomen very pale whitish yellow. Second segment with
a median black vitta running from hind marginal back to anterior margin of
segment, uniformly a little widened anteriorly. Third segment shining bluish
black, except the anterior border, which is pale whitish yellow, not interrupted,
but a little emarginate in middle, a little widened laterally. Fourth and fifth
segments wholly shining bluish black. The short, appressed hairs of yellowish
portions whitish, of black portions black, except that the fourth segment bears
longer whitish but thin pile, with a patch of short white pile on sides at anterior
angles, rest of sides with black pile. Venter nearly corresponding to dorsum in
coloration, the posterior black border of second segment much widened in middle
and abbreviated on sides, the black of third segment reaching anterior margin in

AMERICAN DIPTERA.

41

middle, and thus narrowly interrupting the yellow anterior border. Legs wholly
black, the knees and basal half of front and middle tibia? more yellowish.

Las Cruces, N. Mex., April 7. One female.

An elegant and striking species, which will easily be distinguished
from V. isabellina by the above characters.

26. Yolucella castauea Bigot.

Length 13 mm. Face grayish yellow, stripe of cheeks brown, darker below ;
no facial stripe. Scutellum, parallelogram in front of latter, and lateral stripe of
thorax brownish yellow, the scutellum with something of the same reflection as
the abdomen; rest of thorax greenish black, shining. Wings flavous on anterior
basal portion, with three small clouds near stigma.

Guanajuato, Mexico (A. Duges ) ; one male. Agrees quite well
with Bigot’s description, and is with little doubt that species.

The abdomen is darker apical ly, more purplish on hind margin
of third segment, though this may simply be due to discoloration.

27. Volucella comstoclii Williston.

Las Cruces, N. Mex. One male and two females, April 18. On
flowering shrubs on mesa toward Little Mt. (Tortuga). One ( female)
measures 9 mm. ; the other two 10.5 mm. Pile of face is apparently
shorter in female than in male, and is lateral in both sexes. First
two antennal joints shining black, the third opaque light brown, the
second also light brown in one specimen. In speaking of the wings,
the “faintly clouded on the outer part and posterior border” of Wil¬
li ston’s description consists in my specimens of a little flavous just
distad of the small brown stigma.

The third antennal joint in the female is not twice as wide basally
as in the narrowed portion.

28. Yolucella estebaiia Towns.

San Esteban, L. Cal. (Cal. Acad. Sci.), April, 1889. A pair, £ 9 ,
hi coitiL For description see Proc. Cal. Acad. Sci., 1894.

29. Volucella esurieus Fab.

Las Cruces, N. Mex. One male in valley, August 21, var. vio-
lacea Say, formerly known as V. mexicana Mcq. Face pale chestnut.
Less of a violet reflection, more of a blue. Thorax, scutellum and
abdomen all nearly concolorous, scutellum hardly lighter, all with a
milky bluish tinge. No sign of the prescutellar lighter marking
on hind edge of thorax.

TKANS. AM. ENT. SOC. XXII.

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MARCH, 1895.

42

C. H. TYLER TOWNSEND.

Guanajuato, Mexico (A. Duges). Two males; abdomen of a
pale bronzy purplish color.

Baja California (Cal. Acad. Sci.). Numerous specimens from
8an Jose del Cabo, and other localities.

San Francisco Mt., Arizona. This species was found from the
base to the summit, July 15. It was most numerous at base on a
large yellow composite; was found on same flower in spruce zone
(see Merriam’s definition of zones); on beds of low yellow flowers
below summit, and last of all on the bare volcanic rocks of the sum¬
mit itself. Ten specimens (two taken by Mr. Cordley), four females
and six males. These are all var. violacea Say (formerly known as
mexicana Mcq.), distinguished by the strong purplish reflections
instead of brownish color. It is recorded from California, Arizona,
Texas, Florida, Mexico (Mcq.) and New Granada (^Mcq.).

30. Volucella evecta Walker, var. sanguined Williston.

Dixie Landing, Va. (near Washington, I). C. ), May 25 ; one male.
Length 14 mm. Frontal triangle yellow pilose, eyes black pilose.
Third abdominal segment wholly black pilose ; the fourth shining
bluish black, and wholly orange pilose, except narrowly black pilose
on hind border and continued on hypopygium. The brown spot of
wings is streaked with hyaline.

31. Volucella facialis Williston.

Fort Collins, Colorado (Gillette). One male I refer here. The
pile of dorsum of thorax is black, but that of pleurse, sides of thorax,
and all of scutellum is yellow. The pile of abdomen also is wholly
yellow, that of third segment having a tinge of reddish. The third
segment bears a pair of large, quite distinct yellowish brown spots,
concolorous with posterior margin of second segment ; extra hyaline
portions of wing brownish yellow, darker opposite termination of
auxiliary vein ; otherwise agrees with Williston’s descriptions.
Length 13 mm.

32. Volucella lax n. sp.

Length 11.5 mm. — Comes nearest to V. avida O. Sack. Differs as follows:
Arista thickly plumose above, and a little on apex below; frontal triangle of
male shining black, thinly black pilose ; face straight below antennae. Thorax
shining black, lateral borders and scutellum pale honey-yellow ; pile of thorax
more yellowish, of scutellum more blackish; second abdominal segment with
the black posterior margin narrow, but that of third segment very wide ; narrow
black hind border of second segment does not reach sides of abdomen, but becomes
obsolete at outer fourth or fifth of width of segment. The yellow of second and

AMERICAN DIPTERA.

43

third segments is thus confluent on each side; the black of third segment is con¬
fluent with black of second, and is but slightly narrowed anteriorly ; pile of
yellow portions of second and third segments yellow, but black in a strip anterior
to black borders of second to third segments ; of black portions, black ; fourth
segment wholly greenish black with yellowish pile, fifth black. Venter yellow
on each side basally. Legs blackish, basal half of all the tibiae yellowish. Wings
hyaline, with only a small brown spot at end of auxiliary vein ; second vein ir¬
regular, i. e., sinuous at its extremity. The antennae are light brown, but blackish
on upper edge.

Fort Collins, Colorado (Gillette). One male.

A male from Guanajuato, Mexico (A. Duges), differs almost wholly
in its smaller size, being only 9.5 mm. long.- It is correspondingly
narrower. The yellow abdominal markings do not differ to any ap¬
preciable extent, I cannot help believing, however, that it is a
different species, but I prefer not to describe it from a single specimen.

33. VoJucella ioriia.Y Towns.

El Torte, Baja Cal. (Cal. Acad. Sci.). One male; for description
see Proc. Cal. Acad. Sci., 1894.

34. Volucella lutagii Jaenn.

Guanajuato, Mex. (A. Duges). One male. Length 12 mm.;
length of proboscis 5 mm. ; first antennal joint brown, second and
third light reddish brown; ten marginal macrochsetse on scutellum ;
first three tarsal joints light brown. Otherwise agrees with Osten
Sacken’s description, as modified by Williston.

Jamaica (Bowrey). One male. Length 13 mm. The shadow v
black borders of second and third abdominal segments, due to the
short black hairs, are much narrower than in the Mexican specimen,
that of second segment being a mere line ; stigma not so distinct,
probably due to age of specimen. Scutellum shows by scars to have
had ten marginal macrochsetse. Proboscis only 4 mm. long; a better
preserved female specimen in Mr. C. B. Taylor’s coll, was taken in
Kingston, March 10.

35. Voluoella inops n. sp.

Differs frem V. fax , % , as follows : A narrow line of yellow on cheeks ; front
wide, vertex and antennal protuberance shining black, intermediate portion
yellow; pleurae, thorax and scutellum with yellowish pile. Thorax shining
black, lateral borders, scutellum and two slightly elongate, longitudinal, pre-
scutellar spots, light yellow; yellow of second and third abdominal segments
confluent ; median prolongation of black of third segment not wide, narrowed
anteriorly, but confluent with black of second. Black of second segment con¬
sisting of same narrow, laterally obsolete, posterior border, the median anterior
prolongation of it narrow and equal in width throughout, only a little and equally

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

44

C. H. TYLER TOWNSEND.

expanded before and behind. Therefore, the second segment is yellow, except
this black inverted T-marking; fourth segment greenish black, with yellowish
pubescence, fifth black ; pile of black portions of second segment black, also of
yellow portion for a space in front of the black on each side ; of rest of yellow
portion yellow ; pile of yellow portions of third segment almost wholly yellow ;
of black portions black, except laterally, where it is also yellow. Venter of
second segment almost wholly light yellow, rufous on the median line connecting
with the rufous, which occupies all of third segment. Legs same, but middle
tibiae more yellow, and for more than basal half, and basal joints of tarsi reddish
brown. Wings same ; second vein irregular, i. e., sinuous. Length hardly 10 mm.,
not including antennae.

Fort Collins, Colorado (Gillette). One female.

This species may be differentiated at once from V. satur O. S.,
which it approaches, by the presence of the median black stripe of
face and the wholly dark fourth abdominal segment. The arista in
both this species and V. fax is long and thickly plumose above, ex¬
ceeding in length the elongate third antennal joint.

36. Volucella isabelliua WiUiston.

Las Cruces, X. Mex., July 12. One female, agreeing well with
descriptions. The abdomen is reddish discolored, instead of pale
yellowish.

37. Volucella Incaua Towns.

El Torte, Baja Cal. (Cal. Acad. Sci.). One female; for descrip¬
tion see Proc. Cal. Acad. Sci., 1894.

38. Volucella inellea Jaenn.

Guanajuato, Mex. (A. Duges). Two specimens, $ 9 • These
specimens agree very closely with Jaeunieke’s description, except as
follows : The pile of eyes has a blackish vertical streak in the mid¬
dle. There is no sign whatever of the three vittre on thoracic dor¬
sum, which is uniformly shining dark greenish ; first abdominal
segment does not seem to be entirely black in male, and is mostly
honey-yellow in female ; peculiar spots on third and fourth segments
in both specimens, better shown on fourth. Wings with clouds on
the anterior cross-vein, termination of auxiliary, origin of third vein,
tip of second vein, two cross-veins at distal end of second basal cell,
and terminal portions of last two sections of fourth vein. Of the
most pronounced clouds in the female are those on the anterior cross¬
vein and at tip of second vein. All three costal cells yellowish.
The female has a stump of vein on inside of next to last section of
fourth vein, but there is no sign of such in the male.

AMERICAN DIPTERA.

45

39. Volucella obesa Fabr.

Jamaica (Bowrey, Ckll. '. Found at Kingston. Sixteen speci¬
mens, seven males and nine females. Length very constant, 10-11
mm. Antennae vary from light brown to dark brown ; arista is not
black at tip, and I would not say it was “ thickly plumose” for a
Volucella. Front of female shining green, narrowed posteriorly.
Eyes very short pilose ; hind metatarsi same in both sexes, thickened,
and as long as remaining joints together. Wings flavous on anterior
portions rather than brownish ; the two clouded spots are very dis¬
tinct and dark brown in nine of .the specimens, but faded in the
other seven, in five or six being flavous.

Recorded from Jamaica by J. J. Bowrey (article on insects,
Handbook of Jamaica, for 1881, p. 120). Specimens in coll. C. B.
Taylor.

40. Volucella pullcux Wd. .

Bath, Jamaica. One male in Mr. C. B. Taylor’s coll. Differs
from Williston’s description of V. sexpunctata Lw. as follows : Dor¬
sum of thorax blackish with yellowish pubescence, the sides and
prescutellar parallelogram yellowish like the scutellum. Third seg¬
ment without a blackish spot in middle. Recorded in MSS. by C.
W. Johnson from Port Antonio; one specimen.

41. Volucella satur O. Sack.

Fort Collins, Colorado (Gillettei. One male. It agrees in all
particulars with Williston’s description, except that the yellow por¬
tion of fourth segment has a decided reddish brown tinge ; tarsi
light reddish, all except the tips.

42. Volucella soilomis Towns.

El Torte, Baja Cal. (Cal. Acad. Sci.). Two males; for description
see Proc. Cal. Acad. Sci., 1894.

43. Volucella toltec a. sp.

A male from Guanajuato, Mex. (A. Duges), differs appreciably
from V. inops. The differences are as follows : Length 9.5 mm. ;
eyes contiguous, frontal triangle only black at base of antennae ;
fourth abdominal segment narrowly yellowish on anterior border ;
black border of second segment more prolonged laterally, not reach¬
ing the edge of abdomen however. Scutellum with a blackish reflec¬
tion basally in oblique lights. Wings slightly flavous antero-basally,

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

46

C. H. TYLER TOWNSEND.

with four brown clouds : on small crosswein, at origin of third vein,
at termination of auxiliary vein, and on cross-veins at distal end of
second basal cell.

In V. inops 9 only the stigma is brown, the cross-veins being
hardly perceptibly clouded.

44. Volucella vacua Fab., Wied., Auss. Zweif. ii, 202-203.

Length 7 mm. — Antennae pale yellowish brown ; median stripe of face and
front brown. Cheeks with a dark brown shining stripe, wider above ; the yel¬
lowish prescutellar marking notched anteriorly ; the two yellow spots of pleurae
are callosities, the posterior one bearing yellowish pile. Pile of thoracic dorsum
yellowish, that of scutellum blackish. Scutellum straw-yellowish. The black
of hind margin of second abdominal segment is prolonged anteriorly in a median
line half way or quite to base of segment : that of third segment is prolonged
anteriorly in the form of a median . pair of lines reaching base of segment ; that
of fourth is more or less obscure, prolonged into a median spot at base of segment,
in one specimen only is the spot apparent, the segment being otherwise yellowish.
Pile of black portions of abdomen blackish, of rest light yellowish, all very short,
that of fourth segment much longer and yellowish. The femora, and the tibiae
on basal two-thirds, yellowish. Wings sub-hyaline, with yellowish brown or
brownish clouds ; one extending from origin of third vein inward along the two
cross-veins at distal end of second basal cell ; a wider one extending from tip of
auxiliary vein inward to third vein at a point posterior to the small cross- vein,
and barely, or not, connected with one on the latter; and, finally, a system of
more or less connected clouds occupies the apical one-third of the wing, only
following the veins distally, and terminating inwardly on the fourth vein ; hya¬
line portion of middle of wings with a whitish shade. Otherwise the specimens
agree well with Wiedemann’s description.

Jamaica (Bowrey). Two females.

This species was recorded from Jamaica by J. J. Bowrey, in article
on “ Insects,” in Handbook of Jamaica, for 1881, p. 120 (Kingston,
1881). His specimens were determined at the British Museum.

Two specimens, Kingston, coll. C. B. Taylor.

45. Sericomyia militaris Walk.

Fort Collins, Colorado (Gillette). One male. The whitish pile
of face is very scanty; the scutellum is concolorous with thorax,
with same pale bluish reflection. No yellow dots on second abdom¬
inal segment. The pile of abdomen is wholly yellow, as described
by Williston for the females, only a band of black pile on posterior
portion of second segment. The fourth segment has a fringe of
yellowish silvery pile on hind margin exactly like that of third seg¬
ment. In all other respects it agrees with Williston’s description ;
hind coxae with tubercle. Length slightly over 14 mm.

AMERICAN DIPTERA.

47

46. Arctopliihi flstgrsins O.. Sack.

Fort Collins, Colorado t Gillette). One female, which measures
only 9 mm., I refer to this species. Only the male has been de¬
scribed ; although the anterior cross-vein is situated well before the
middle of the discal cell, and there is such a difference in size, still
1 am confident that the specimen must be referred here. The more
robust form and pilosity indicate its affinities with the groups having
the anterior cross-vein beyond or near the middle of the discal cell.

It differs from Osten Sacken’s description as follows: Female. —
Length 9 mm. ; third antennal joint more yellowish, the two basal
joints nearly black; ground color of thoracic dorsum and scutellum,
seen through the yellowish pile, is metallic dark greenish, or greenish
black. The middle tarsi are quite uniformly blackish, not reddish
basally, like the hind tarsi. In all other respects it agrees closely
with the description.

47. Eristalis seneus Fabr.

Washington, I). C. Three males taken May 2, August and No¬
vember 28. Dixie Landing, Va., one female, July 13 ; agrees well
with descriptions.

48. Eristalis n. sp. (?) aft. atrimanus Loew (mm Williston).

Bath, Jamaica (E. M. Swainson). One female I doubtfully
identify as Loew’s species; and I feel assured that, the species from
Santo Domingo described by Williston in his monograph (pp. 173-
174) is not atrimanus Lw., but a new species, for which I propose
the name willistoni.

The present specimen from Jamaica agrees well with Loew’s de¬
scription in all except one particular ; the anterior lateral spots of
third abdominal segment are not aeneous, but yellow like the lateral
portions of second segment. The interrupted, shining, aeneous fascia
of fourth segment, when viewed in certain lights, shows its true
ground color to be yellow ; and it should also be noted that the yel¬
low of second segment is shining on anterior median margin.
Whether the markings of third segment vary in atrimanus 9 from
shining aeneous to more yellow cannot be known until more material
is obtained, and this only will decide the position of the present
specimen. The latter is just the size of Loew’s specimen, about
9t mm., and possesses the oblique yellowish markings at base of
wings described by Loew as connected with the pre-sutural band.
Williston’s specimens lack these, and are much larger, being 12 mm.

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

48

C. H. TYLER TOWNSEND.

Tn my specimen the antennae are, however, rather yellowish brown
than black, and the wings are clear hyaline. The yellow markings
of third segment are sub-semicircular and separated, touching the
front margin ; and the shining, interrupted band of fourth is not
widened laterally.

49. I-'.ristalis l»astar<li Mcq.

Washington, D. C., May 27. One male. Face and frontal tri¬
angle light yellowish pollinose. No black pile on thorax ; reddish
yellow7 markings of third segment distinct, and similar smaller mark¬
ings distinct on anterior angles of fourth segment.

50. Eristalis bronsi Williston.

Hanover, N. H. (Weed). Six males and three females. Fort
Collins, Colorado (Gillette), one male. The males all agree very
well with the descriptions. The Colorado specimen has the yellow
of abdomen a little lighter. In the females the opaque black of
second segment widens out along the hind margin ; and the third
and fourth segments have an opaque black posterior border, con¬
nected on third with the median anterior opaque spot by an opaque
line. The front is brassy pollinose, rather than reddish. Length
8-10 mm.

Another female, from Orono, Me. (Harvey), has third segment
with the small opaque spot in front, fourth without; second, third
and fourth rather widely whitish pollinose on hind border, the nar¬
rower margin yellowish white.

51. Eristulis us Wied.

Washington, D. C., May 17-22. Two males, and one female;
first tw7o antennal joints shining brownish in the one V . The front
of female has no median brown stripe, only a faint streak abbreviated
below. All my specimens have the yellowish spots on second seg¬
ment distinct ; in one male those on the third segment also.

52. Eristalis flavipes var. melanost.om.us Loew.

Fort Collins, Colorado (Gillette). One female; on each side of
middle of second abdominal segment the ground color is yellowish,
anterior to which the pile is yellowish. On third segment the same
spots occur, but are very faint and more reddish, and on and poste¬
rior to them the pile is yellow, continued broadly on sides of fourth
segment ; middle tibise yellowish on basal half, the yellow hairs with
a few black on distal portions ; a faint brown cloud extends from
stigma to anterior and posterior cross-veins.

AMERICAN DIPTERA.

49

53. Eristalis liirtus Loew.

Sail Francisco Mt., Arizona, July 15. One male and two females
(two coll, by Cordley) ; also one male, Manitou, Colo. (F. Marlatt),
September 1. These specimens all show the light yellow triangles
of the second segment very plainly. The face in the females is more
yellowish, especially the pile of face and front ; the hind femora of
female are yellow at base. All have the whitish yellow hind margins
of second to fourth segments distinct.

54. Eristalis latifrons Loew.

Las Cruces, N. Mex., two females, April 8 and 9 ; three males
April 8, and one male June 5. One female, La Vega de San Jose,
N. Mex., August 4 ; one male, Turkey Tanks, Arizona, July 17 ;
also one male, apparently this species, from San Francisco County,
Cal. (Acad. Sci.). The scutellum is translucent brownish yellow.
Otherwise these agree well with Wil listen’s description.

Var. — I have ten female specimens from Las Cruces, N. Mex.,
taken April 8 to June 28, and one female from Riley County, Kans.
(F. Marlatt), September, which constitute a distinct series that 1
cannot refer to any other species. They differ from the others in
having a faint but distinct brown cloud on middle of wings, the
anterior base of wings being more or less flavous, and in having the
yellow spots of second segment wholly obsolete or very obscure yel¬
lowish brown. One specimen in this series shows the spots pale yel¬
lowish, especially laterally, while one female (Vega de San Jose),
that I included in the normal series, has the wings with a distinct
brownish flavous cloud.

55. Eristalis tenax Linn.

Washington, D. C., numerous specimens, May. Guanajuato,
Mex. (A. Duges), one male ; California, three specimens (Cal. Acad.
Sci. ).

The scutellum, which is yellowish and yellowish pilose, is omitted
from Williston’s description.

In all my collecting in the valley of the Rio Grande in southern
New Mexico, I did not find this cosmopolitan species (up to June,
1893). It is also apparently absent from the island of Jamaica.

56. Eristalis transversus Wied.

Constantine, Mich., three males and two females, August 24-31.
Dixie Landing and Roslyn, Va., two females and one male, August

TKANS. AM. ENT. SOC. XXII.

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MARCH, 1895.

50

C. H. TYLER TOWNSEND.

18-21. Washington, D. C., one female and one male, May 5 and
19. Takoma, D. C., one female, September 7. These all agree well
with Williston’s descriptions.

57. Eri*(silis tricolor Jaenn.

Guanajuato, Mex. (A. Duges). One female; tibiae yellow basally.

58. Eristalis vinetorum F.

Bath, Jamaica (Swainson). One female measuring 13 mm., and
one male measuring 9 mm. The median facial stripe in both speci¬
mens shows only as two disconnected markings ; a section on facial
tubercle elongate-pointed above, .and a median spot on oral margin.
These with the cheeks and a suhtriangnlar marking at posterior base
of antennae, are shining pale metallic brownish. All the rest of
face and frontal triangle in male is whitish pollinose and whitish
pilose. Otherwise Williston’s description agrees well, except that
the female has the wings quite flavous on middle portion. The distal
portion of first posterior cell contains a grayish cloud, as well as the
marginal and submarginal cells. The hind tibiae of both are dis¬
tinctly ciliate. The prescutellar fascia is semicircular and almost, or
quite, joins ends with the presutural, following the edge of the thorax
around.

Mr. C. W. Johnson, in litt., determines this species from Port
Antonio. This species was previously recorded from Jamaica by
Walker under the synonym of uvarum. Specimens in C. B. Taylor’s
coll., Jamaica.

Trinidad (F. W. Ulrich). One female. The yellow of second
abdominal segment is more extensive than in the Jamaican specimens.

59. Eristalis sp. No. 21, Williston, Biol. Cent.-Amer., Dipt, iii, p. 65.
Chacaltianguis, on the Papaloapam River, State of Vera Cruz,

Mexico. One male taken by the writer in sweeping, Dec. 31, 1892.
With little doubt this species. The antennte are more brownish red.
Abdomen is rather reddish yellow, and the black of second segment
is expanded on base of abdomen into a bar forming a T-shaped
marking. Agrees exactly otherwise with Williston’s short description.

60. Meromaertis cinctus Drury.

Jamaica (Bowrey). Four (two £ , two 9 ) from Cinchona, 5000
feet (W. Fawcett). Eleven specimens, four males and seven females.
Length 15-17 mm. Scutellum wholly yellowish brown, without any
red tinge, but with slight blackish reflections in oblique lights. The

AMERICAN DIPTERA.

51

abdomen in my specimens is brownish red, third to fifth segments in
male deeper reddish brown and shining, fourth and fifth segments
and posterior margin of third in female shining deep green. One
male from Cinchona has the fourth segment with a metallic bluish
reflection. First and second segments quite uniformly opaque brown¬
ish red, only faintly lighter on each side of middle. The cross-band
of anterior margin of third segment is very finely interrupted in
middle, showing only a very delicate thread of red, in one female
hardly apparent, but emarginate behind. This band in the male
widens laterally, not so in the female. Lateral spot of yellow pile
of fourth segment a little larger in the male. Front femora of male
not thickly black pilose on posterior side like the middle pair. Wings
are smoky hyaline, slightly flavous on anterior border, more deeply
and widely so toward base of wing, distally filling only the fourth
costal cell ; spurious vein on its middle appearing enlarged, as though
fractured, with a slight cloud. Otherwise agreeing with Williston’s
description of his Santo Domingo specimens.

A character of the wings in this genus, which seems to have been
overlooked, is the presence of an extra cross-vein, forming a fourth
costal cell. It is not mentioned by Macquart, Loew, or Williston.
This extra cross-vein takes the place of the stigma, which is entirely
absent, and joins the auxiliary vein a little before its tip with the
first vein. The original third costal cell is thus formed into two
cells. This is plainly shown in all of my specimens, as is also the
peculiar swollen and clouded middle of the spurious vein.

There is an approach to this extra cross-vein in some specimens
of Eristalis, the proximal portion of the stigma in the right wing of
a specimen of E. flavipes var. melanostomus from Colorado almost
appearing like a cross-vein. It seems apparent also in an unspurred
male of Mallota cimbiciformis, from Washington, I). C. Williston
figures the wing of Pter. crucigera in his monograph, but the figure
indicates rather a small stigma than a cross-vein.

Mr. Cockerell has mentioned this species on p. 74 of Jour. Inst,
of Jamaica as sent from Bath (Swainson).

Note. — The same swollen middle of the spurious vein is to be
seen in many other Syr phi dm, as Spilomyia, etc.

The genus Pteroptila Lw. is a synonym of Meromacrus Rdi. (see
Williston, “ Ent. News,” April, 1893).

61. Helophilus anreopilis n. sp. aff . Jlar'ifacies Bigot.

Length 10 mm. — Face, cheeks and lower half of front wholly light yellow and

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

C. II. TYLER TOWNSEND.

0

-2

yellow pilose. Antennae wholly yellow, with an orange tinge, the arista darker
terminally. Upper part of front darker, black pilose, vertex yellow pilose. Tho¬
rax yellowish pilose, with three broad blackish vittae reaching scutellum, leaving
four yellowish vittae. Scutellum yellowish ; pile of thorax and scutellum yellow,
of pleurae thickly yellow ; that of abdomen short and chiefly yellow. First ab¬
dominal segment gray pollinose, except on posterior angles ; yellow spots of second
segment very distinctly interrupted ; of third almost joined by two yellow trian¬
gular elongate spots; fourth with yellowish pollinose separated spots shaped like
those of second, fifth yellow pollinose. Black of second segment expanded
broadly on each side anteriorly, running on to sides of first segment. Second
segment with a very narrow yellow hind margin ; third with a broader yellow
margin, somewhat pollinose anteriorly in middle ; fourth with a yellow margin
of same width and a grayish pollinose band next in front of it. Legs yellow ;
middle and front femora at base, hind femora in middle, hind tibiae at tip, and
hind tarsi except tip, blackish ; hind tibiae near base, and hind knees, brownish >
also front tibiae narrowly on inside at tip. Wings fuscous-hyaline, dilute flavous
on more than basal half.

Constantine, Mich., August 26. One male ; agrees well with
Bigot’s description, but as the latter is not detailed the identity can¬
not he certain.

62. Helopliilus latifrous Loew.

Las Cruces, N. Mex. One female, June 8. Length 12 mm.
Agrees well with Williston’s description ; antenme black, arista
yellow.

63. Helophilus similis Mcq.

Constantine, Mich. One male and one female, August 28 and 31.
Length 12-13 mm. Agree well with the distinctive characters
pointed out by Williston wherein the species differs from latifrons.

64. llallola cimbiciformis Fall.

Washington, D. C. (Marlatt), May 17. One male. Length only
10.5 mm. Belonging to the form rimbiciformis, unspurred; pile of
frontal triangle and face yellowish white, sparse ; brown spot of
wings faint ; pile of front and middle legs more or less yellowish ;
pile of abdomen all black, except at base.

63. Tropidia inrana n. sp.

Length about 7 mm. Differs from female of T. qundrata as follows : Face and
cheeks entirely shining black, somewhat silvery pollinose. Face distinctly con¬
cave in profile. Antenna: dark reddish or reddish brown. No median pollinose
stripes apparent on thoracic dorsum ; whole thoracic dorsum and scutellum shin¬
ing black, the latter without any yellow on the border ; pleurae also shining black.
Abdomen pale red, first segment black, except hind angles ; second segment with
a median black vitta, which is expanded anteriorly, coalescing with the black of
first segment ; posteriorly it is also widened about half way to lateral edge on

AMERICAN DIPTERA.

53

each side ! third segment with a similar vitta, but not at all widened anteriorly^
truncate instead, posteriorly widened in a similar manner to that on second seg¬
ment, but less so ; fourth segment with a black subtriangular marking, truncate
anteriorly ; posterior borders of second and third segments reddish, very narrowly
yellowish on the edge, that of fourth segment more yellowish ; venter red, black¬
ish at base in middle. Legs black, knees of anterior aud middle pairs yellowish.
Wings subfuscous, nearly hyaline, stigma flavous. The first posterior cell is more
broadened and shortened, the last section of fourth vein bulging out more.

Fort Collins, Colorado (Gillette). One female.

It may at once be known from T. quadrata by its red abdomen
and shining black face, combined with the absence of a yellow border
on the scutel lum.

66. Tropitlia quadrata Say.

Washington, D. C., May 19. One male. The posterior band of
second segment is wholly reddish yellow, brownish at lateral ends ;
rest of light color of segment yellow, leaving only an opaque black
T, which is not inverted, and the bar of which extends on hind bor¬
der of first segment. Third segment with the opaque, black, median
vitta abbreviated on more than its posterior half, lapsing into reddish
yellow, which spreads along hind margin of segment.

67. Xylota clialybea Wied.

Washington, D. C., May 22. One male. Length 14 mm. Dor¬
sum of thorax and scutellum with a strong violet shade.

68. Xylota flavitibia Bigot.

Fort Collins, Colorado (Gillette). One male ; pleurae and scutel¬
lum with longer whitish pile than dorsum of thorax, which is thinly
pilose. First abdominal segment wholly black, apparently without
red hind angles ; but the anterior angles of the red second segment
appear to be very acute and to fill the place of the hind angles of
the first, which seem cut off or rounded. The brownish of front and
middle tibiae is not very noticeable. Wings hyaline, only the stigma
pale yellowish.

69. Xylota pigra Fab.

Washington, D. C., May 22. One female ; scutellum concolorous
with thoracic dorsum. Black of second segment faintly apparent in
a median vitta on third, and even on base of fourth ; ovipositor ex-
serted, very long, curved under abdomen, pale brownish, not orange
like the fifth segment, from which it is protruded ; fifth segment sub-
triangular, very narrow behind ; ovipositor consisting apparently of
three segments.

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

54

C. H. TYLER TOWNSEND.

70. Syritta pipions Linn.

Constantine, Mich., $ 9 . Hanover, X. H. (Weed), one female,
Riley County, Kansas (F. Marlatt), %> 9. Mountain View, Cal.
(Ehrhorn), May to October, 1 9 . Las Cruces, X. Mex., one female,
June 7.

This species does not seem to spread into the tropical regions of
America.

71. Spilomyia longicornis Loew.

Constantine, Mich., August 31 to September 1, three females and
two males. Dixie Landing, Va. (near Washington, D. C.), October
5, one male. Length 12-15 mm. They all agree very well with
the description ; the hypopygium is brown, almost shining black in
the Virginia specimen. The latter also has more brown on posterior
side of hind femora.

In one female the yellow bands of abdomen, except the anterior
fascia of second segment, is faded into a brownish color.

72. Spi loniyia quailrifasciata Say.

Constantine, Mich., August 21 to 31, one male and four females.
Length 11-14 mm. Frontal triangle in the one male pale brownish
next base of antennae.

73. Itlilesia ornata Fab.

Washington, D. C., August 4. One male ; a normal specimen.

74. Ceria abbreviata Loew.

Fort Collins, Colorado (Gillette). One female; the third antennal
joint is light reddish brown, the tip of second joint being coneolor-
ous with it. The scutellum is widely (about two-thirds its width
antero-posteriorly), bordered with yellow. The posterior yellow bor¬
der of second abdominal segment is distinctly, but not greatly wider
than those of third and fourth segments. Legs pale reddish, bases
of hind tibiae broadly yellow, of middle and front tibiae more nar¬
rowly so ; possesses all the other characters in detail given in Willis-
ton’s description.

75. Ceria Iridcns Loew.

Las Cruces, X. Mex., April 8, one male; June 21, one female.
Length 9-9.5 mm. Facial stripe brownish yellow in female ; yellow
extending wholly across frontal triangle, with only a thread of light
brown ; yellow oval spots of vertex narrowly separated in female by

AMERICAN DIPTERA.

55

a brown line, in male merged in a single, light yellow, swollen mark¬
ing. The small yellow spot on the pteropleurse is very faint in the
female, wholly absent in the male ; scutellnm almost wholly yellow
in both ; yellow bands' of second and third segments hardly widened
laterally ; grayish pollinose lateral Innate markings of fourth seg¬
ment plain in female, only the ends apparent in the male ; hind
femora of male colored like the others, brownish ring of tibiae very
faint. Legs of female entirely ochraceous, bases of tibiae yellow,
hind tarsi brownish , otherwise the specimens agree with Williston’s
descriptions of the two sexes.

These two specimens I believe to belong to the same species, and
are doubtless tridens Lw., notwithstanding the above differences.
The second and third abdominal segments are of nearly equal length
in both.

t OXTRIBI TIOIVS TO THE DIPTEROLOGY OF
NORTH AMERICA.

II. — TABANIDiE, CONOPID.E, TACHINID.E, Etc.

BY C. H. TYLER TOWNSEND.

This paper is a continuation of the work begun in the first part,
which was on the Syrphidse (Trans. Am. Ent. Soc. p. 33, 1895). The
present and second part embraces the three families above mentioned,
and completes the author’s notes and descriptions so far made on the
Townsend collection, which, as before stated, now forms a part of
the University of Kansas collection of North American Diptera.
Therefore all of the types herein described are to be found in that
collection, with the exception of a very few recently acquired, and
which are duly noted.

STRATIOMYIDJE.

1. Pacliygaster pulcher Lw.

Las Cruces, N. Mex. A female taken on foliage, May 5, proves
to be this species. Unlike the two female specimens from Montana,
mentioned by Williston in “Can. Ent.” 1885, p. 128, it has the
femora blackish, except at base and tip. The front and third coxse
are also black, except at tips. The short pubescence of mesoscutum

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

56

C. H. TYLER TOWNSEND.

is brassy golden in color. There is some very indistinct white pubes¬
cence on pleurae. The length is 2 mm. (abdomen is hexed under
apically) ; length of wing 2.5 mm.

TAB AN IILE.

2. Chrysops callidns Osten Sacken.

Dixie Landing, Va., June 1 to July 6. Four females; ends of
/\-shaped marking on second segment prolonged laterally along the
hind margin, in two specimens strongly and in the other two weakly ;
segments of venter toward tip brown, margined with yellowish. The
cloud of fifth vein coalesces hardly, or not at all, with the cross-band.

3. < Hr y sops COStat ii* Fab.

Kingston, Jamaica ; recorded by F. Walker from Jamaica (List
Diptera in British Museum, pt. v, 1854). Best description is given
by Wiedemann (Auss. Zw., i, 198). One female September 11, from
Dr. W. H. Strachan ; and one female November 18, captured on
Museum window.

Wh at is usually supposed to be the first ring or section, of the third
joint of the antennae in Chrysops is, in this species, at least in the
above two specimens, annulated or segmented with unusual distinct¬
ness, making the third antennal joint appear as if composed of eight
annuli. The frontal callosity is of about the same rusty yellowish
color of the face, but with the posterior edge brown. In both speci¬
mens also, the outer branch of the two blackish abdominal markings
(of tergum) extends to (not on) the sixth segment, instead of only
to the fifth as Wiedemann describes. The inner branch extends to
(not on) the fourth segment. Thus the outer arm or branch of the
markings extends the width of two segments farther posteriorly than
the inner branch. The venter of abdomen has a lateral longitudinal
blackish brown vitta, beginning about middle of second segment,
continuing to posterior border of third, and more faintly on fourth
and fifth segments.

The two basal cells, and also the anal, are hyaline, except a slight
infuscation of former at proximal end, and of all at distal end. The
discal cell and last posterior contain each a hyaline spot, that of the
latter reaching the margin. First two joints of an ten me long and
very nearly equal.

AMERICAN DIPTERA.

01

Dr. Williston has identified this species from Santo Domingo (Tr.
Kan. Acad. Sci. x, 134). Macquart has recorded it from Cuba, and
Fabric! us and Wiedmann from South America. I am able to verify
Walker’s determination of it from Jamaica.

Mr. C. W. Johnson, in lift., determines it from Port Antonio,
Jamaica.

4. Cltrysops montanus O. S.

Pompanoosuc, Vt. (C. M. Weed ). One female ; first two antennal
joints reddish yellow ; third yellowish brown, the last four annuli
black. Thorax brownish, with two broad, median, grayish stripes,
and lateral more yellowish ones. The median pair of longitudinal
blackish markings on abdominal segments three and four coalesce
anteriorly, but not so broadly as those of second segment ; none of
the spots of one segment coalesce with those of any other segment.
Front femora blackish at base ; the middle knees, unlike the others,
not blackish. The cloud on fifth vein does not join the cross-band
of wings; otherwise agrees well with Osten Sacken’s description.

5. Cltrysops niger Macq.

Dixie Landing, Va., May 25 to June 22. Three females. In all
three of the specimens the first basal cell is lighter than rest of
clouded portion, in fact it is largely subhyaline. In all other respects
they agree closely with Osten Sacken’s description. Fourth posterior
cell hyaline next the intercalary vein in all.

6. Cltrysops vittalus Wiecl.

Riley County, Kansas (F. Marlatt), August ; two females. Length
7.5 mm. Frontal callosity yellowish, like the face ; no “ vestiges of
yellow spots” on sixth segment. In one specimen the venter has a
median blackish spot on third, fourth and fifth segments, in addition
to the lateral stripes ; otherwise they agree well with Osten Sacken’s
description.

7. Silvios qusulrivittatus Say.

Smith ville, So. Dakota (J. M. Aldrich) ; four females. These do
not differ from southern New Mexico specimens, except that they
seem to be a little more yellowish pollinose, and average somewhat
larger. A single female from Riley County, Kansas (F. Marlatt,
June), is also larger.

8. Tlierioplectes astutus Osten Sacken (?)

Orono, Me. (Harvey) ; one female. Differs from description as

(8)

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

58

C. H. TYLER TOWNSEND.

follows : Palpi hardly thickened at base, pale brownish yellow ; third
antennal joint considerably excised, with a very distinct angle, seg¬
ments of annulate portion not distinct. Thorax with five narrow
gray vittae ; otherwise agrees well, but the eyes are nearly bare, and
very indistinctly, if at all, pubescent.

9. Tiierioplectes comawtes Will.

Custer County, Colorado (T. D. A. Cockerell). Three females I
refer to this species on account of the reddish first, second and base
of the third antennal joints, and the absence of any cloud on furca¬
tion of third vein. T. phcenops O. S. differs only in the black
antennae.

Placer and Santa Clara Counties, California (E. M. Ehrhorn).
Two females. Length 13 mm., I am inclined to refer to this species.
They differ as follows from Williston’s description: Face is white
with white pile, that on upper border near eyes narrowly blackish ;
palpi pale yellowish, or rather whitish, with sparse black hairs and
white pile ; basal joints of antennae pale reddish ; front is but slightly
convergent anteriorly ; first to fourth abdominal segments with an
oblique area of whitish hair on sides, all segments thinly bordered
behind with whitish hair, and abdomen with whitish hair on sides.

10. Tlivriopleotes zonal is Kirby.

Orono, Me. (Harvey) ; two females. Length 16.5 and 18 mm.
The smaller female has yellowish hair on cheeks, and the yellow bor¬
ders of abdominal segments very narrow; but the light reddish ante-
alar tubercle, brownish palpi, and narrow front indicate zonalis.
The hair of abdomen, also, except on hind borders of segments, is
black. The other specimen is more normal, but the yellowish bor¬
ders of the abdominal segments bear black hairs among the yellow,
becoming almost exclusively black on the last two or three segments.

11. Atylotns basil n. sp.

Length 14 mm. — Front moderately broad, black ; frontal callosity square, shin¬
ing, with a prolongation, above which is widened on terminal half or more. Face
blackish, cheeks with whitish hair. Antennae pale yellowish, with a brownish
tinge, annulate portion of third joint shining black; third antennal joint very
slightly excised above; palpi whitish, with black hairs; pleurae and pectus black¬
ish, with whitish hair. Thorax brown, with short yellowish hairs, scutellum
concolorous. Abdomen pale yellowish brown, with a yellowish, more or less in¬
terrupted median streak, some short whitish hair on middle of first segment and
on outer posterior margins of other segments (perhaps also along median vitta,
but if so, rubbed oft'), rest of abdomen with short black hairs. Venter more yel-

AMERICAN DIPTERA.

59

lowish. Legs yellowish, the terminal half of tarsi, and front and middle tro¬
chanters blackish, the middle and hind femora tinged with brownish. Wings
clear, costal cells very dilute yellowish.

Dixie Landing, Va., June 22. One female.

12. Tabami*» alone n. sp.

Length 10 mm. — Rather nearly allied to T. parr ulus Willist. from Santo Do¬
mingo. Front of moderate width, quite parallel. Antennae reddish yellow, the
annulate portion and angle of third joint black, with a slight tinge of black
on other joints distally; frontal callosity nearly square, pointed above, convex
below. Rest of front yellowish gray pollinose, with a brownish shade on vertex,
and another between latter and callosity; subcallus not denuded, yellowish gray
pollinose ; third antennal joint not wide at base, very narrow, but with a distinct
angle. Face with a white bloom and white pile; palpi pale yellowish tawny;
pleurae and sternum with whitish pile. Dorsum of thorax light brown, with five
yellowish gray vittse, the sides and posterior border lighter. Scutellum of same
brown, with a lighter border. Abdomen pale yellowish brown, the last three seg¬
ments darker ; all the segments with a narrow grayish hind margin, which is
dilated into a small median triangle on second to fourth. All the segments with
a vestige of a whitish pollinose spot on each side, each separate and not touching
borders of segment. Legs pale brownish yellowish, tarsi darker. Wings hyaline ;
the stigma, furcation of third vein, small cross-vein and origin of third, and cross¬
veins at distal end of second basal and discal cells, narrowly clouded ; costal cells
quite clear, except at stigma.

Bath, Jamaica (Mrs. E. M. Swain son) ; one female. Type in coll.
Townsend.

13. Tabaniis angusfi Irons n. sp.

Length 9-11 mm. — Pale yellowish brown ; no limpid spots on wings, which
show no marked cloudiness, but are only yellowish on costal portion ; first two
antennal joints reddish yellow, the third wholly black. Abdomen yellowish
brown, with hind margins of segments pale yellowish gray, enlarging into a
triangle in the middle and forming an approach to a median line ; front is very
narrow and parallel, eyes bare. Basal enlarged section of third antennal joint
distinctly angular above; palpi tawny grayish. Legs brownish, bases of tibiae
and tarsi lighter.

Jamaica. Two female specimens. One from Cinchona (5000 feet),
Jamaica, August, 1893, W. Fawcett. A small species.

This is not T. lucidulus Wlk., as it lias no limpid spots on wings.
I doubt that it is T. rufiventris Mcq., as identified by Walker, which
was from Cuba. At any rate Macquart’s description is too meagre
to be certain. It is none of the Santo Domingo or other new species
described by Willistou y in “ Trans. Ivans. Acad. Sci.” x). Macquart
described rufiventris from a male specimen, which makes the deter¬
mination of that species at the best very uncertain, and doubtless
Walker’s determination of it from Jamaica is wide of the mark.
T. rufiventris should, therefore, be dropped from the Jamaican list
of Diptera until competently identified.

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

C. H. TYLER TOWNSEND.

60

14. Tabaiius alratus F.

Constantine, Mich., August 26 ; one male. Washington, T). C.,
May to September, one female and two males. One of the males
has the first posterior cell closed, and another has it nearly closed.
None have yellowish hind margins to wings.

15. Tabaiius oxul O. S.

Dixie Landing, Va., four females, July 6-16 ; Washington, D. C.,
two females and one male, June 30 to August 4. These specimens
all agree well in coloring with Osten Sacken’s description, in Part II
of Prodrome, of the original T. abdominalis with the first posterior
cell closed. The male and three of the females have the first poste¬
rior cell well open, but moderately coarctate ; two other females have
it narrowly open and strongly coarctate ; while the remaining female
has it very narrowly open, almost closed, in the left wing; but like
the preceding in the right wing. These specimens, agreeing so closely
otherwise and showing such variation in the first posterior cell, seem
to indicate that the latter character is of little importance even in
separating varieties. There seems to be no difference among the
female specimens in the width of the front, which is moderately wide.
Length 19-22 mm.

It is interesting to note that the females of this species are very
numerous in July on the small steam tug-boats that run on the
Potomac from Washington up to Dixie Landing. They alight on
all parts of the boat while in mid-river.

16. Tabanus ex ill var. or n. sp.

Riley County, Kansas (F. Marlatf , June. One female, 18 mm.
long, differs in having a narrower front, the first posterior cell wide
open, the third antennal joint black except extreme base, form not
so stout and thorax appearing narrower, abdomen and legs brick-
brown, and median triangles very faint, with grayish instead of yel¬
lowish hairs among the black hairs on abdomen. The hind tibiae
are less noticeably sub-ciliate, the yellowish gray pile of underside
of head and thorax less plain, frontal callosity oval and pointed
above, where it sends out the spindle-shaped prolongation. This
seems to be a distinct species.

17. Tabanus punctifer O. Sack.

Fort Selden, Dona Ana County, N. Mex. ; one female, June 13.
La Vega de San Jose, Valencia County, New Mexico ; two females,
August 4. Chaves, N. Mex. ; one male, August 6. One female (Au¬
gust 4 ) is without the clouded spot at base of second posterior cell.

AMERICAN DIPTERA.

61

LEPTIDvE.

18. Artliropeas n. sp. ?

Hill City, So. Dakota (Titus Ulke) ; one female specimen. Length
15 mm.

It differs from Loew’s description of the same sex of A. americana
in its larger size, in having the front entirely black, and in the wings
being fulvescent without black design, except subfuscous clouds along
the veins. i

In the left wing of this specimen there is a well formed extra cross¬
vein behind the discal cell, exactly opposite to the small cross-vein
and of almost the same length. It cuts off the inner corner of the
fourth posterior cell where it joins the second basal, thus making
the fourth posterior cell five-sided and forming a small triangular
sixth posterior cell immediately at the extremity of the second basal.

CONOPIILE.

19. C'onops foracliyrliynclius Mcq.

Las Cruces, N. Mex., June 18-25; two males and one female.
Length 7f-9 mm. These agree very well with Williston’s description
of obseuripennis, which is a synonym (acc. to Willist.). In addition
to the golden yellow markings of the thorax mentioned by Wi I listen,
there is an indistinct prescutellar band of that color which, however,
is obsolete in one male specimen. The whole of fifth and sixth seg¬
ments is brassy yellow dusted, and sometimes even the fourth appears
wholly so in certain lights. The yellow on tip of second and begin¬
ning of third segments is more or less silvery white pollinose.

20. Conops fronto Willist.

Las Cruces, N. Mex., June 8 and 25 ; one male and one female.
Length 8.5-10 mm. ; silvery lustre distinctly defined on sides of face ;
disc of first, third, fourth and fifth abdominal segments more or less
black ; the black of fourth, and of fifth especially, being an anterior
border ; otherwise agrees perfectly with Williston’s description.

21. Conops gracilis Will.

Las Cruces, N. Mex., June 15-28 ; three females and five females.
Length 9-11 mm. Two of the females and four of the males have
the front pure yellow, with hardly a trace of the brown in the mid¬
dle. The vertex is yellow in most of the specimens ; facial grooves
are brownish in middle at the furcation in one male and one female.
The males have none, or more or less, blackish on first, fourth and

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

62

C. H. TYLER TOWNSEND.

fifth abdominal segments ; the females have it pronounced on these
segments, and also on third segment in two specimens. In all other
respects these specimens agree closely with Williston’s description.

22. Conops xantliopareus Will.

Riley County, Kansas (F. Marlatt), August and September ; two
males. Length 10-1 1 nun. Agrees well with Williston’s description ;
costal cells dilute yellowish. The subhyaline in (fiscal cell appears
rather to form, with that of first basal, a single rather clear stripe.

23. Physo cepliala allinis Will.

Constantine, Mich., September 6 ; one female. Length nearly 1 6
mm, Vertex pale reddish. The median ^-shaped fine of front more
blackish ; facial grooves smoky brownish in middle of each ; humeral
pollinose spots golden-yellow ; cox;e silvery. First posterior cell with
a rather small median hyaline spot on inner edge ; four costal cells
yellowish hyaline.

There is but little difference between this species and castanoptera
besides the hyaline outer portion of (fiscal cell and the hardly less
hyaline outer portion of submarginal.

24. Physo cepliala castanoptera Lw., Neue Beitriige, i, 33.
Constantine, Mich., August 31 ; one male. This is a valid species,

distinct from sagittaria Say. It will be distinguished from the latter
by the yellowish vertical callosity ; the red lateral and hind margins
of thoracic dorsum ; the red pleurae, scutellum, prescutellar marking,
and upper border of metanotum ; and by the costal cells being dis¬
tinctly clear or slightly yellowish. The red prescutellar marking is
a parallelogram joining the red border of the thorax. Coxae brown,
silvery pollinose outwardly; legs red, tarsi brownish on terminal
joints, basal half of tibiae more yellowish. Second abdominal seg¬
ment red, except a blackish patch on disc ; first segment reddish,
brownish on disc ; third segment red anteriorly. Metanotum black,
except the red upper border.

Las Cruces, N. Mex., June 4 and 26 ; one male and one female.
These differ from the Michigan specimen in having abdominal seg¬
ments 4-6 more golden pollinose, and the vertical callosity is slightly
tinged with reddish.

25. Pliyso cepliala oclireiceps Big.: Will., Biol. C.-Am., Dipt, iii, 83-4.
Las Cruces, N. Mex., June 28 ; one female. Differs from Willis-

ton’s description of P. texana as follows : Length 10.5 mm. ; third

AMERICAN DIPTERA.

63

antennal joint a little longer than first, and about one-half as long
as second ; disc of metanotum black, anterior margin red. Three
rather broad, confluent, black stripes on dorsum of thorax, the lateral
ones abbreviated before and behind, and the middle one still more
abbreviated behind ; front and hind metatarsi tinged with black on
inside edge. If this species and texana are synonymous, the former
is doubtless the typical form. It should be noted that this species
shows, though somewhat less noticeably, the triangular smooth space
on hind margin of eyes, which is so noticeable in Conops fronto Will.
The legs are hardly as thickened as usual in Physo cephala.

26. Physo cepliala tibialis Say.

Constantine, Mich., August 31 ; one male. Dixie Landing, Va.,
August 7 and 19 ; two males. The Michigan specimen has hind
tarsi red on basal joints.

27. Zoriion 1‘ulvif eons Say.

Las Cruces, N. Mex., June 4 to September 27 ; seven males and
one female. Also a male from Colorado (Gillette). Length 5.5-7. 5
mm. All the males have the abdomen reddish yellow and silvery
pollinose, the reddish interrupted stripes more or less distinct. The
female has them more distinct, and darker.

Ottawa, Canada (Harrington), June 16 ; one male. Length 5 mm.
Agrees very well with Williston’s description.

28. Zoriion splnidcns Jaenn.

Zacatecas, Mex., August 12 ; one female. Length 8 mm. It
agrees quite well with Jaennicke’s description, somewhat better with
Williston’s description of Z. leucostoma, but I believe both are the
same species. The oblique pollinose markings of second segment unite
somewhat indistinctly into a band. The anterior border of fifth seg¬
ment is shining polished reddish ; the sixth segment is only pollinose
on disc, leaving the edges polished brown, the pollinose portion being
transversely wrinkled. Extremity of abdomen polished dark brown,
enlarged. Wings light yellowish at base; only last tarsal joint (not
last two) is blackish ; arista not black.

Las Cruces, N. Mex., June 21 and August 18; two, male and
female, specimens. The male has the pairs of spots on fourth and
fifth segments better defined and more rounded.

29. Oncoinyia baroni Will.

Hanover, N. II. (C. M. Weed) ; one female. Agrees with de¬
scription. Length 5 mm. This species seems to differ from O.
loraria principally in being decidedly larger.

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

64

C. H. TYLER TOWNSEND.

30. Oncomyia loraria Lw.

Takoma, I). C., September 20; one female. Agrees closely with
Loew’s description. The cheeks, particularly, have a silvery lustre,
also the outer surface of tibiae. Length slightly over 3.5 nun. The
tarsi are all blackish, but bases of tibiae are all slightly testaceous;
the second joint of proboscis is slightly longer than the first; and
the second joint of antennae is no longer than the third. In this
latter character it approaches O. baroni.

31. IVIyopa |»i<*( i pen u is Willist.

California (Ehrhorn). One specimen.

32. Stylogaster neglecta Will.

Riley County, Kansas (F. Marlatt), July; one female. Proboscis
not yellowish at base ; second abdominal segment yellowish above ;
third, fourth and fifth, more brownish, white pilose anteriorly; ovi¬
positor yellow at base.

(ESTRIDtE.

33. Cuterebra americaiia Fat).

San Francisco Mt., Arizona. One male taken on plateau a few
(about ten) miles to the north of the mountain, July 5. The abdo¬
men has a decided purplish blue reflection ; the scutellum is sub¬
opaque black. Thorax moderately shining; the golden yellowish
pile on pleurae contains, in its upper edge anteriorly, a rounded sec¬
tion of black pile, and a less well-defined patch of black pile touches
its lower edge; just anterior to the last is a polished black glabrous
area; still anterior to which is a third and smaller tuft of black pile.
The venter is entirely black, but shows indications of the efflorescence
in having an opaque surface containing the round, shining, purplish
spots. Length If). 5 mm.

34. Cuterebra fbiitinella Clark.

Fort Collins, Colorado (Gillette) ; one specimen, 22 mm. long.
See “ Insect Life,” v, pp. 319-320, for note on this specimeu.

35. Ciastropliilus cqui Fab.

Cinchona, 5000 feet, Jamaica (W. Harris) ; two females, August
(see Notes from the Museum, No. 73, Institute of Jamaica, Jan. 26,
1894).

AMERICAN DIPTERA.

65

TACHINIDgE s. lot.

36. Trieliopoda arcuata Big.

This species, which Bigot described from Chili, I believe to be a
synonym of T. mexicana Mcq., so far as 1 can judge from the de¬
scriptions.

37. Trieliopoda liist rio Walk.

Inverness, Fla., and southern Illinois (Robertson). One specimen
from each locality in Mr. Robertson’s collection (Robt. in litt.). I
use this name for T. trifaseiata Lw., which I have shown to be a
synonym of it (Proc. Ent. Soc. Wash., ii, 139).

38. Trieliopoda mexicana Mcq., Dipt. Ex., Sup. i, 172.

Macquart described the female as there designated. The species
differs from all those I know by having the first two antennal joints
testaceous.

39. Xj si a sp.

See “Can. Ent.,” 1881, p. 150, for note on Xysta sp. from New
Hampshire.

40. Ilyalomyia celer n. sp. J.

Eyes cinnamon -brown, closely approximated, almost touching in front of the
ocelli ; frontal vitta triangular, velvety black, with a row of black hairs on each
sde; a short bristle at each vertical angle, and a pair within ocelli directed
strongly forward ; sides of front, sides of face, face, cheeks and occiput silvery,
the occiput a little more inclining to plumbeous ; epistoma prominent, produced,
no decussate vibrissse, the facial ridges with hairs to tips of antennae ; sides of
face bare, cheeks with gray hair ; antennae black, third joint somewhat silvery,
wider than second, but little longer, rounded ; arista thickened little more than
half its length, 3-jointed, first two joints short; proboscis brownish or blackish,
longer than height of head, somewhat fleshy, labella well developed ; palpi rather
long, slender, knobbed at tip, blackish ; occiput sparsely black hairy. Thorax
and scutellum shining black, faintly silvery in some lights, humeri and pleurae
more distinctly silvery; scutellum with an apical and lateral pair of bristles.
Abdomen clothed with short black hairs, shining, black at base ; the last three
segments cinereous pollinose, black punctate. Legs black, claws and pulvilli
somewhat elongate. Wings gray-hyaline, veins pale yellowish brown ; tegulse
whitish, halteres rufous. Length 4 mm. ; of wing, 3.5 mm.

Described from one specimen. Las Cruces, N. Mex., June 18 ; on
flowers of Aster spinosus.

41. Ilyalomyia celer or n. sp. % .

Differs from H. celer 9 only as follows : Silvery, sides of front a little wider,
constricting the frontal vitta posteriorly ; epistoma not prominent, not produced ;
arista thickened a little less than half its length ; palpi not so much thickened at
tip ; hypopygium distinct, large, extruded ; claws and pulvilli rather elongate.
In all other respects like the preceding. Length slightly more than 4 mm. ; of
wing about 3.5 mm.

TRANS. AM. ENT. SOC. XXII.

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MARCH, 1895.

C. H. TYLER TOWNSEND.

66

Described from one specimen. Las Cruces, N. Mex., June 3 ; on
flowers of Aster spinosus. This may be the male of H. celer.

42. f»,vniiiosoina fuliginosa R. D.

I believe this to be distinct from the European G. rotundcita L.,
after comparing three males of the latter with a series of the Amer¬
ican males. The European male has the face more silvery, and the
antenme almost entirely black. The American male has the face
with a brassy tinge, and the antenme very largely fulvous.

The European specimens were kindly sent me by Mr. v. d. Wulp
and Mr. v. Ruder.

While on the subject of the genus Gymnosoma,, it may be well to
point out that Macquart (Dipt. Ex. Sup. ii, 81) records the occur¬
rence of G. rotundata Mg. (so identified by him) from Tasmania,
saying, also, that it exactly resembles the European form. This,
therefore, gives Gymnosoma a range in the southern Hemisphere, but
in the temperate regions. It is not a tropical genus. I doubt Mac-
quart’s specific determination, however.

43. Cistogaster inimaciilata Mcq., Dipt. Ex. ii, 3, 76.

Gymnosoma occidua Wlk. and Cistog aster divisa Lw. are synonyms

of this species. Macquart and Loew described the male, and Walker
the female.

In connection with this species, there is an interesting point to be
decided. Having examined an extensive series of Cistogaster, which
I believed to belong to this one species, although there was much
variation among the females, I found that I could readily separate
the individuals of the latter sex into two constant series. As there
did not seem to be any constant differences in the males, in fact very
little variation if any, it occurred to me that there might be a case
of dimorphism among the females of this species, the normal form
being that described by Walker, and also by Williston (Trans. Am.
Ent. Soc. xiii, 296). This form has the mesoscutum shining black,
with three distinct white pollinose vittae (scutellum pollinose), the
abdomen with a median similar vitta and two or three similar cross¬
bands or fasciae, and is larger than the male. The other form of the
female approaches the male in both size and the color of the abdo¬
men, having the latter more or less red, especially anteriorly on the
sides, the rest blackish, but not showing the cross-bands or median
vitta more than in the male ; the principal difference, however, is in
the color of the mesoscutum (including the scutellum), which -is

AMERICAN DIPTERA.

07

shining black without the white pollinose vittee of the normal female,
or the brassy pubescence of the male, only white pollinose on humeri
and pleurae. The sides of front also are more black, with less silvery.
I thought to consider this a case of dimorphism, rather than to con¬
sider as distinct the latter form, which approaches the male in general
habitus. The capture of pairs in coitu will be needed to confirm or
refute the supposition.

However, Mr. Charles Robertson, of Illinois, in correspondence
with me on the above point, writes that he can differentiate the males,
and believes, therefore, that there are ttvo distinct species to be dis¬
tinguished in both sexes. This may be so, and the fact that indi¬
viduals of the same sex, in two nearly allied species, are sometimes
hardly to be separated favors this view. I quote Mr. Robertson’s
letter in full so far as it pertains to this subject, and confess that his
views seem very probable.

“ Put in a row all males haviug a longitudinal fuscous stripe on the abdomen-
In a parallel row put all males in which this fuscous stripe is wanting. Then in
line with the first set put the ‘ normal’ females and in line with the second set
put the ‘ dimorphic’ females. It will be noticed first that the fuscous stripe also
bears a pollinose stripe and indicates a connection with the normal females which
have a pollinose stripe down the abdomen. Then it will lie noticed that the first
set of males runs larger than the second, which goes to show that they are dis¬
tinct, and that they belong to the ‘normal’ females which also run larger than
the ‘ dimorphic’ females. In the large males it will be seen that the first posterior
cell varies from closed to petiolate as in the normal females, while the small males
have the cell more petiolate, as in the ‘ dimorphic’ females. Then it will be oh.
served that the bend of the fourth vein is more rounded in the small males, and
generally more angulate in the large ones. Comparing the abdomens of the two
sets of males with those of the corresponding females will show that they agree
in the distribution of pollen, which I think is very important. Probably other
points will be found, but if the specimens are arranged as I have suggested, and
each specimen in the one row compared with the one standing opposite in the
other row, I am satisfied the conclusion will be drawn that there are two distinct
species which can be separated easily, though the males are a little harder to
separate than the females, a very common thing in closely allied species.

“I have considered that black specimens of the ‘dimorphic’ females were the
same as C. pallcmi Towns., but the small species is really a redder one than the
large.”

In case it is shown that there are two species in the above forms,
Macquart’s name will still stand for the species which possesses the
“normal” females, and Walker’s name will still remain a synonym
because he described the “normal” female. Loew’s name, however,
can be applied to the species possessing the “ dimorphic” females,
which will thus be known as C. divisa.

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

68

C. H. TYLER TOWNSEND.

44. Ocj plera eiichcnor Walk.

Illinois (Forbes); twenty specimens, measuring 8-10.5 mm. Of
0. dosiades Walk., there were ten specimens from same locality,
measuring 5-7.5 mm., and all normal in size and color. Though it
is difficult to separate these two forms, yet it hardly seems probable
that they are all the same species. Dr. E. Giglio-Tos doubtfully
unites them in his recent work on Mexican Diptera (Ditt. Mess., iii,
p. 1 ). The differences in size are too great, I believe, to admit of
this view.

45. Ilcni.vria an rata R. D.

I have four specimens from Illinois (Forbes), and one from State
of Washington (Williston). Two of the Illinois specimens are
males and two females. The Washington specimen is a female.
The female is the smaller, has the shorter claws and pulvilli, and the
pale yellow markings of the abdomen are not so heavy. The front
is about one-third the width of the head in both sexes. R. D. says
that, in H. aurata, the posterior half of the second segment is pale
testaceous. In the above five specimens the second segment is broadly
pale yellow on the sides, the yellow being separated by a median
black vitta which broadens out and forms the hind margin of the
segment. The pale yellow anterior fascia of third segment is very
narrow and interrupted in the middle in the females, but is much
broader, and with a tendency to become entire anteriorly in the males.
1 consider the above specimens, however, the same as Desvoidy’s
species, which is doubtless the only species of this genus in North
America or elsewhere.

PSEUDOU YSTRICIA Brauer and v. Berg.

General characters. — Robust species with spiny macrochsetse, hav¬
ing the facies of Dejeania, but easily distinguished by the hairy eves.
Belongs to the Hystriciime. Head quadrilateral in profile ; front of
male twice as broad before as at vertex, more than one-third width
of head in middle, prominent in profile, face nearly twice as wide ;
frontal bristles strong, descending about as low as base of third an¬
tennal joint, vertical bristles and about next four pairs directed
backward, rest inward and decussate ; no orbital bristles in male.
Face a little receding, epistoma very prominent ; facial depression
more than one-half width of face, oval in outline, shallow ; facial
ridges bare, except several bristles next vibrissse, constricted below ;
sides of face wide, clothed with some fine long hair ; cheeks very
wide, fully three-fourths of eye-hight, hairy posteriorly ; vibrissse
strong, inserted a good distance above oral margin. Eyes quite

AMERICAN DIPTERA.

G9

thickly hairy. Antennae shorter than face, second joint elongate,
third about one and one-half times as long as second, only moder¬
ately wide, convex before, straight behind ; arista microscopically
pubescent, thickened most of its length, 3-jointed, first two joints
very elongate. Proboscis fully as long as bight of head, rather slim,
elongate, labella developed ; palpi long, spoon-shaped, extending
more than one-third their length beyond the epistoma. Thorax
much wider than head; scutellum and abdomen densely set with
spiny macrochsetse. Abdomen much wider than thorax, rounded
and swollen. Legs moderately long, tibiae spiny ; claws and pulvilli
of male very elongate. Wings longer than abdomen, without costal
spine, third vein with some weak bristles at base ; apical cell widely
open, ending well before tip of wing; fourth vein curved suddenly
at a right angle, apical cross-vein strongly bowed in at its origin ;
posterior cross-vein sub-sinuate, very oblique, nearer to bend ot fourth
vein ; both cross-veins nearly parallel with hind border of wing.
Type, Hystricia ambigua Macq.

46. Psemloliystricia ambigua Mcq. V

Eyes and frontal vitta brown ; sides of front cinereous, with black hairs among
frontal bristles, and gray hairs along the vitta ; face and cheeks entirely cream-
colored. sides of face with long and tine gray hair, cheeks with gray hair poste¬
riorly ; antennae and arista black, the second antennal joint with a stout bristle
before; proboscis shining black, brown at base and tip, palpi golden -yellow,
brownish toward base: occiput cinereous, thickly clothed with yellowish gray
hair. Thorax brassy, clothed with macrocheetse and grayish hair, pleurae golden
with a bunch of long yellowish hair, mixed with which are black bristles : scutel¬
lum pale flesh-colored, densely set with macroclnetfe, the anterior lateral portion
only being without them : hypopygium considerably exserted, black, hairy. Legs
black, front femora golden on outside, front and middle femora with golden gray
hair, femora and tibiae bristly; claws and pulvilli very long, orange-yellow.
Wings more or less smoky golden, yellow at base and narrowly along costa ; tegular
nearly white, with yellowish borders; halteres golden-brown. Length ot body,
14 mm.; of wing, 13 mm.

Described from one specimen ; Guanajuato, Mexico ( Dr. Alfredo
Duges).

47. Psemloliystricia exilis Towns.

Cichona, Jamaica; several specimens from Mr. W. Fawcett, Au¬
gust and September.

48. Saumlersia bicolor Will.

San Francisco Mt., Arizona ; on large yellow composite in spruce
zone, one female specimen, July 15. Recorded from New Mexico,
Arizona, California, Washington. I very much suspect that van der
Wulp’s S. bipartita is the same species. It is described from Durango
Mexico, 8100 feet, and Cache, Costa Rica. Colorado (Gillette) ; one
specimen.

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895.

70

C. H. TYLER TOWNSEND.

49. Saunriorsin signifcru Will.

Colorado (Gillette) ; one specimen.

50. Jurinia algous Wd.

San Francisco Mt., Arizona; found from base to summit. Most
abundant in spruce zone ; more in fir zone than at base ; sixteen
specimens (three coll, by Cordley), July 15 ; in coitu this date. Two
from Hart Little Spring, July 14. Of these eighteen specimens,
twelve are males and six females ; the male may be known by the
elongate claws, and the exserted hypopygium. Two other secondary
sexual characters are quite constant : the occipital pile of male is
more clearly light brassy yellow, that of female deeper or more of a
butt-vellow ; and the front of the male is more silvery-white pollinose,
that of female being more of a golden-yellow pollinose. This species
ranges from Colorado and Wyoming through Dakota, Michigan,
Canada and New York to New Hampshire and Maine.

Colorado (Gillette) ; one specimen bred from Hadena lignicolor.

51. Jurinia apicifera Wlk.

Colorodo (Gillette) ; one specimen bred from Clisiocampa califor-
tiica. This specimen has the face somewhat less golden than speci¬
mens from Michigan. Northern specimens of Tachinidse seem often
to have the colors more deeply marked than those from more southern
localities.

52. Jurinia liystrix Fab. var. ?

Colorado (Gillette). A single specimen seems near to J. hystrix,
and may perhaps be considered a variety of that species.

53. Jurinia n. sp. (?) aff. lateralis Mcq.

Differs from female of lateralis as follows : First joint of arista nmch longer,
about as long as second joint, distinct bristly hairs on sides of face below near
eye margin ; front, thorax and abdomen very similar in all respects, even in¬
cluding the orbital and frontal bristles, but general form not quite so widened,
and anal segment without the yellowish silvery efflorescence, wholly shining
iustead. Abdominal macrochjetse apparently quite the same; third antennal
joint dark brown. Length hardly 10 mm.

San Francisco Mt., Arizona; one female near base of mountain,
July 14 (Cordley). This is near, but very distinct from J. lateralis ,
with which it might easily be confused from its great similarity.

A male specimen, from Hart Tuttle Spring, near the base of the
mountain, July 14, is longer than the preceding, but is sufficiently
like it to be in all probability the same species. It agrees with it in
all the characters above outlined in contradistinction to lateralis, ex¬
cept, of course, in the orbital bristles, but the antennse are wholly
pale reddish including the third joint.

54. Blepliarspexa bieolor Mcq.

Colorado (Gillette) ; two specimens.

AMERICAN DIPTERA.

71

55. Blepharipeza jurinioides u. sp.

Length 13 mm— Stout and unusually spinose, with the facies of Pseudohystritia
or Jurinia, but distinguished by its ciliate hind tibise ; front black, partly concealed
by silvery pollen ; frontal vitta spot soft dark brown ; facial depression, sides of
face and cheeks, silvery polliuose. Antennas brown, the second joint moderately
short, the third joint very long, nearly linear, reaching almost to epistoma ; palpi
brownish, yellowish apically ; posterior orbits and occiput silvery polliuose.
Thorax brownish black, thinly silvery polliuose, leaving five narrow vittse, the
three inner ones abbreviated behind, the outer ones interrupted at suture; scu-
tellum and abdomen shining black, densely spinose, spines deep black. Abdomen
broad and rounded oval, the surface with a faint metallic bluish shade. Legs
dark or blackish brown, femora silvery outside, hind tibia> black ciliate, pulvilli
yellowish. Wings hyaline, blackish at base ; tegubc fuscous.

Cinchona (5000 feet), Jamaica (W. Faucett) ; one female. Type
in coll. Townsend.

56. Belvosia ferruginosa n. sp.

Length nearly 12mm. — Eyes green in life; front brownish red on each side,
more or less silvery polliuose ; frontal vitta soft brownish golden ; facial depres¬
sion, sides of face and cheeks, rich silvery white polliuose, cheeks hairy. Au-
tennte dark brown, the third joint linear and nearly three times as long as second ;
arista brown ; palpi brownish black, yellowish on tips ; vertex somewhat yellow¬
ish ; posterior orbits silvery white. Thorax and scutellum brownish red, the
former thinly polliuose before, leaving the beginnings of four narrow vittse ; pos¬
terior corners of mesoscutum yellowish, also a little yellowish behind humeri.
Abdomen of a beautiful iron-rust yellow, in the first and second segments the
yellow shade predominating, in the third and fourth the iron-rust shade; first
segment brownish under scutellum ; a median pair of macrochsetse on first and
second, a marginal row on third and fourth segments. Legs soft blackish, pul¬
villi and claws yellow. Wings uniformly pale fuscous; tegulse same color.

Bath, Jamaica (E. M. Swainsoii) ; bred from a lepidopterous
chrysalis ; one male. A beautiful species. Type in coll. Townsend.

57. Ecliinomyia liaemorrlioa v. d. Wulp, Williston.

San Francisco Mt., Arizona. Quite well up the mountain, prob¬
ably in spruce zone. Three males and two females, July 15; also
one male near base (Cordley), and another male at Hart Little
Sprinu', both July 14. I am quite satisfied that this is the species
referred by Williston to hcemorrhoa. In my specimens the third
antennal joint is larger in the male, the abdomen (of male) is dark
red on the sides and with the anal segment largely blackish shining.
The anal segment of female has the silvery efflorescence, but that of
the male is quite uniformly without it, only exceptionally showing
traces of it. There is a very small cloud on anterior cross-vein in
the males, not apparent in the females.

58. Ecliinomyia iterans Walk.

San Francisco Mt., Arizona ; in spruce zone ; three females ( one
coll. Cordley), July 15. This species belongs in the subgenus Pele-

MARCH, 1895.

TRANS. AM. ENT. SOC. XXII.

72

C. H. TYLER TOWNSEND.

teria of R. I )., by virtue of its having two macrochaetae or bristles
on side of face near lower margin of eyes. The subgenus Echinomyia
s. str. is without these bristles.

59. F.cliinoin.yia tliomsoui Willist.

San Francisco Mt., Arizona; in spruce zone. Three females (one
coll. Cordley), July 15; also one female, Hart Little Spring, July
14; and one male, Cocanini Plateau to the north of the mountain,
July 6.

Colorado (Gillette) ; one specimen bred from “ unknown larva on
clover.”

(JO. Erliiiioinj ia n. sp. ?

La Vega de San Jose, Valencia County, New (Mexico ; two speci¬
mens, male and female, August 4. Flagstaff, Ariz., July 2, a smaller
female. This species is very similar to E. ( Peleteria ) iterans Wlk.,
but may be distinguished not only by the absence of the two bristles
on sides of face below near eye margin, which pronounces it an
Echinomyia s. str., but also by the more cinereous or grayish pol-
linose prothorax. In E. iterans, the prothorax is of a more shining
brassy pollinose shade, and the fine thoracic lines are more distinct.
In the present species the first two joints of antennae, and sometimes
the base of third, are of a lighter and more dilute reddish than in
E. iterans. The abdomen is marked the same, except that the anal
segment seems to lack, as a rule, the silvery pollinose sheen.

61. Atropliarista Towns.

This genus should undoubtedly be subordinated to Melanophrys
Willist., and A. jurinoides referred to that genus. It does not belong
in the Hystriciinae, but in the Taehinime.

62. Il.yst ricliia aldriHii Towns.

This is probably a Nemonea. It comes near X. obscurella v. d.
AVulp, but differs in having only four thoracic vittae, and the ab¬
dominal segments with both marginal and discal macrochaetae.

63. <»onia sagax Towns.

Illinois (Forbes) ; one specimen. It has the antennae not so bright
orange, but of a duller color. Length 9.5 mm.

64. Ar"j roj)li jliix sp.

Colorado (Gillette). A specimen, apparently belonging to this
genus, was bred from Philampelns achemon.

65. Kiplio I>Ia gia auoniala Towns.

What I take to be a male specimen of this species (southern Illi¬
nois, Robertson) has the abdomen slightly narrowed, with the pollen
more of silvery than a cinereous shade.

AMERICAN DIPTERA.

66. Cneplialia sp.

Mesilla Valley of the Rio Grande, New Mexico. A characteristic
species of this genus is numerous in individuals about Las Cruces.

67. Trichophora sp.

Six specimens from southern Illinois (Robertson) I refer to this
genus. Mr. v. d. Wulp remarks on the doubtful distinctions between
this genus and Cuphocera (Biol. Cent.-Amer., Dipt, iii, 35-36). The
two genera seem well marked. Cuphocera, differs by its more elon¬
gate abdomen and general narrower form, and should include C.
ruficauda v. d. W., which has an elongate abdomen. The present
species of Trichophora has a short, stouter abdomen, and general
much stouter form. It differs from Echinomyia only in the entire
absence of palpi, the third antennal joint being about as long as the
second, and the frontal bristles descending in a double row below
near the eye margin the so-called genal bristles). The second and
third abdominal segments have only marginal macrochsetse.

The character of the comparative length of the second and third
antennal joints does not seem to be rightly understood in the three
genera Trichophora, Cuphocera and Echinomyia. The last has the
third joint shorter than the second. Cuphocera, according to the
type species, should have the same characteristic, but specimens which
I identify as C. macrocera Wd. and C. ruficauda v. d. W. have the
third joint fully as long as the second, or a little longer. These two
species, moreover, agree in their general elongate form, very notice¬
able in the elongate abdomen, and thus would be readily separated
from the shorter, stouter species of Trichophora. The species of
Trichophora above referred to may be distinguished at once from T.
nigra Mcq. by having two bristles on the sides of face near lower
margin f eyes, instead of one as in that species ; and from T. analis
Sch. by the anal segment being wholly rufous, and the other segments
blackish, the sides of the anal segment in T. analis being broadly
black and the rufous extending on sides of second and third segments.

68. Tachina rlisiocampre Towns.

Colorado (Gillette) ; one specimen bred from I)u» a is archippus.
The front is less golden than in the type from Maine. Sides of ab¬
domen more distinctly red ; scutellum more generally rufous. Another
specimen, which I refer here with some doubt, was bred by Prof.
Gillette from Clisiocarnpa californica.

69. Tachina sp.

Colorado (Gillette). A species with a IJlagia-\i\te facies. One
specimen bred from Plusia brassicce.

TRANS. AM. ENT. SOC. XXII.

(10)

MARCH, 1895.

74

C. H. TYLER TOWNSEND.

70. Tiicli ina sp. (s. str.)

Colorado (Gillette). One specimen reared from a larva of Copto-
cycla. This is probably a new species of Tachina (in the narrow
sense).

71. Miltogramma cineraseens Towns.

A specimen from southern Florida (Robertson) agrees with the
types of this species in all respects, except that the face and cheeks
are a little less deeply golden or brassy pollinose, but have somewhat
more of a silvery shade. I will not venture to describe it as distinct.

72. Hiltogramiiia trilineata v. d. W.

Two male specimens from southern Florida (Robertson), collected
February 16 and March 10, I refer to this species. They seem to
have the abdomen slightly more silvery than a specimen from southern
Illinois, but are otherwise identical.

These two species both differ from Schiner’s description of Milto-
gramvia by not having the first abdominal segment shortened, and
by having the frontal bristles moderately strong. From his descrip¬
tion of Macronychia they differ in their smaller size, and the abdomen
being rather short conical. They agree with Eii macronychia in hav¬
ing one row of frontal bristles, and the orbital bristles present in both
sexes. The front is about one-fourth width of head (in both sexes?).

73. K u iliac roily cilia decerns Towns.

Seneca Ranch (north of Springerville), Arizona; one male, June
25. Also one female, Zuni River, Arizona, July 28.

74. Eumacronycliia elita Towns., Trans. Am. Ent. Soc. xix, p. 100.

This species bears much superficial resemblance to the genus Gym-

noprosopa Towns., more than does E. decern. The following differ¬
ences may be pointed out between it and that genus: Front fully
one-third width of head in male, a little more prominent ; frontal
bristles weaker, more nearly equal ; two orbital bristles in male.
Facial depression about one-third width of face in male ; sides of
face rather wide ; cheeks wide, nearly one-half eye-height. Eyes
descending little over two-tliirds as low as oral margin ; second an¬
tennal joint rather elongate, third joint about twice as long as second ;
proboscis about as long as height of head, not stout ; scutellum with
two lateral pairs of macrochsetse, but with apical decussate pair
wanting. Abdomen cylindro-conical, first segment not shortened ;
hypopygium exserted ; pulvilli of male elongate, claws short ; fourth
vein with a quite distinct wrinkle at bend, apical cross-vein only
slightly concave, apical cell narrowly open and terminating well
before tip of wing.

AMERICAN DIPTERA.

iO

75. Masicersi sp.?

Southern Illinos (Robertson) ; one specimen. This differs from
the genus Masicera in its elongate, rather narrowed abdomen with
the macrochsetse only marginal, in the general elongate form, and in
the frontal bristles descending on sides of face nearly as low as the
vibrissa). It will probably form a new genus.

76. Olivieria n. sp.

Southern Illinois ( Robertson 1 ; one male I refer to this genus. It
agrees with Schiner’s description of Olivieria, in all points except
following : Eyes very distinctly hairy, instead of thinly so ; proboscis
a little longer than height of head, palpi a little thickened terminally ;
first abdominal segment hardly shortened ; apical cell open.

77. Nemorsea n. sp.

Southern Illinois (Robertson) ; three males and two females. This
species differs from N. aldrichi (descr. as a Hystricia) in having the
anal segment rufous, and sides of other segments frequently so as
well. It differs from N. variegata v. d. W. in having the third an¬
tennal joint hardly longer than the second. From the description
of N. leucanice Kirkp., it differs only in the same character — the
length of the third antennal joint, which in that Species is said to be
two and a half to three times as long as second. The an ten me vary
from wholly black to black with the second joint clear rufous.

78. Nemoriea n. sp.

Colorado (Gillette) ; one bred from Ecpantheria permaculata.

79. Mystacella n. sp.

Colorado (Gillette) ; one specimen bred from Acronycta ameri-
cana (?) ; and another from Pyrrharctia Isabella.

80. IS y pliant rophaga hypliantriie Towns.

Colorado (Gillette) ; one bred from Vanessa milbertii.

81. Hypliantropliaga n. sp.

Colorado (Gillette) ; two specimens bred from Vanessa milbertii.
This is very near to, but different from, H. hyphantrice Towns., and
is probably a new species.

82. JBxorista tlieclarum Scudd.

E. chrysophani Towns., “ Ent. News,” 1891 (December), pp. 197-
198, is a synonym of this species.

MYOBIA Rob. Desv.

General characters. — Yellowish species, considerably resembling
Clytia, but readily distinguished by the very large palpi. Belongs
in Thryptoceratinse. Head nearly rectangular in profile ; front
rather prominent, about one-third width of head, frontal bristles

TRANS. AM. ENT. SOC. XXII.

MARCH, 1895

76

C. H. TYLER TOWNSEND.

descending almost to base of third antennal joint ; vertical bristles
strongest, and, with next two pairs, directed backward, others inward ;
two orbital bristles in the female. Face nearly perpendicular, epis-
toma prominent ; facial ridges bare ; sides of face not wide, bare ;
cheeks about as wide as one-third the eye-height, bare ; vibrissse in¬
serted almost on oral margin. Eyes bare. Antennae not quite as long
as face, second joint a little elongate ; arista pubescent, thickened on
basal half, indistinctly 3-jointed, second joint not elongate ; proboscis
rather slender, considerably longer than height of head, labella con¬
siderably developed ; palpi unusually large, club-shaped, elongate,
extending one-third their length beyond the epistoma, much thick¬
ened at tip. Thorax about as wide as head ; scutellum with a sub-
apical pair of macrochsetse, which are not decussate, and a lateral
pair, besides several very weak ones. Abdomen a little wider than
thorax, broadly rounded, first segment bar ily shortened ; macrocluetm
only marginal. Legs somewhat elongate, not very bristly. Wings
longer than abdomen, without costal spine, first vein spined its whole
length, third vein spined as far as the small cross-vein ; apical cell
ending in the apex of the wing, open ; fourth vein bent at a curve,
without stump or wrinkle ; hind cross-vein a little nearer the bend
of the fourth vein, apical cross-vein slightly concave. Type, M.
diadema Wd.

83. lljobiii <li;«<lema Wied. £ .

Eyes cinnamon-brown ; front light yellow, frontal vitta same color ; face and
cheeks whitish, the sides of face with a golden tinge; cheeks with some bristles
on lower border; antennae orange-yellow, dark brownish at tip, joint with a long
bristle before ; arista dark brown ; proboscis yellowish, palpi orange-yelloW,
clothed with short black bristles ; occiput whitish below, cinereous above, except
vertex, which is yellowish, sparsely clothed with gray hairs, fringed with some
black bristles above. Thorax dark cinereous with a pair of narrow, black, me¬
dian vittse becoming obsolete at the suture, and a longer, lateral vitta interrupted
at the suture; humeri and pleurae yellowish; scutellum yellowish. Abdomen
clothed with short, black, bristly hairs: first segment yellowish, second segment
yellowish, except median portion and hind borders, last two segments brownish
yellow ; first segment with a very small median marginal pair of macrochsetae,
and some lateral bristles on sides; second segment with a median marginal pair
and a lateral pair, third segment with eight or more marginal, and last segment
with six or more marginal macroclnetae ; venter light yellowish at base, darker at
tip, anus blackish. Legs with a few sparse bristles, light yellowish except tarsi,
which are blackish ; first tarsal joint much elongated ; claws and pulvilli short.
Wings grayish hyaline, the portions along wing-veins tinged with yellowish ;
teguhe light yellowish, especially on borders; halteres light yellowish. Length
of body, 7 mm. ; of wing, about 6 mm.

Described front one specimen, Ithaca, N. Y. (Comstock), July 19.

AMERICAN DIPTERA.

I t

84. Atropliopoda singularis Towns.

On pp. 373-375 of Trans. Am. Ent. Soc., vol. xviii, I gave a de¬
scription of the new genus Atrophopoda, from two specimens from
Illinois. Although both sexes are indicated in the description, I
believe that I had females only under inspection. In a collection
of Tachinidse sent me by Prof. F orbes, from Illinois, I find 27 speci¬
mens which seem to be this species. Of these, 12 are the typical form
of my descriptions, and are apparently the female sex, while 15 are
apparently the same species, and if so, must be considered the males.
They differ by having the eyes pronouncedly hairy, the antennae
greatly enlarged and hypertrophied, and the claws and pulvilli of
all the feet elongate — the same form described by me as Lachnomma
in Trans. Am. Ent. Soc., xix, pp. 103-105. I desire to point out
the possibility of these two forms being male and female, since the
suspicion has come to me. If it is so shown, the name Atrophopoda
has priority over the other. Some of the Lachnomma form are much
smaller than the typical. However, the typical specimens of Lach¬
nomma do not possess the vittate thorax characteristic of the above
specimens.

85. Epigrimyia polita Towns., Trans. Am. Ent, Soc., xviii, 375-376.

One specimen from southern Illinois (Robertson) does not differ

from the type described from D. C. It was taken by Mr. Robertson
on flowers of Blephilia sp.

86. Pseudomyothyria n. sp.

Length 4.5 mm. ; of wing, 3.5 mm. — Eyes brown, frontal vitta brown ; sides of
front, face and cheeks silvery ; two orbital bristles, directed strongly forward ai d
a little outward ; antennae and arista black, third antennal joint four times as
long as second, rather stout ; proboscis brown, palpi pale rufous ; occiput cinereous,
sparsely hairy. Thorax silvery, with four narrow blackish vittae anteriorly ;
scutellum blackish, silvery pollinose. Abdomen shining black, bases of second
to fourth segments broadly silvery pollinose, the third segment faintly and the
fourth markedly with a golden shade ; second and third segments have the pollen
divided by a non-pollinose black median band : first and second segments with a
median marginal and a lateral marginal pair of macrochaetae, third with eight
marginal, anal armed with marginal and submarginal macrochsetae. Legs black,
pulvilli and claws small. Wings grayish hyaline, tegulae white ; halteres brownish
testaceous.

Southern Illinois (Robertson). This species differs somewhat from
the type of the genus in not having the facial ridges ciliate more
than half way up the face.

87. Vanderwulpia atrophopodoides Towns.

Socorro, N. Mex., August 8 ; one specimen.

88. Scopolia n. sp.

Southern Illinois ( Robertson ) ; one specimen. Differs from Schiner’s
description of Scopolia by having a more nearly ovate, instead of a

MARCH, 1895.

TRANS. AM. ENT. SOC. XXII.

78

C. H. TYLER TOWNSEND.

conical abdomen. The abdomen is rather shorter than elongate. I
notice that Scopolia sequax Will, is described as having the abdomen
ovate also.

89. Scopolia sp.

Colorado (Gillette) ; probably a new species. One specimen bred
from a leaf-roller on choke cherry.

DEXIIDJE.

90. Scotiptera n. sp.

Southern Illinois (Robertson). One female I refer to this genus
on account of the very short stump at bend of fourth vein, and the
rather elongate proboscis. The third antennal joint is, however, not
more than twice the length of the second. The front of female is
narrower than the eyes at vertex, but in middle about as broad as
eyes. The cheeks are somewhat more than half the eye height ; the
bristles on the legs are rather stout. In other characters it agrees
with v. d. Wulp’s generic description in the Biol. .Cent.- Amer. Dipt.

91. €’lia*toiis» n. sp. ?

Colorado (Gillette). One specimen bred from Ecpantheria per-
maculata.

92. Tlielaira n. sp.

Colorado (Gillette) ; one bred from Pyrrharctia Isabella. Probably
a new species.

93. Tlielaira sp. ?

Colorado (Gillette). One specimen, apparently of this genus, bred
from Ecpantheria permaculata.

Another specimen of same genus as above, but of a different spe¬
cies, bred from Pyrrharctia Isabella.

MUSCIIAE.

94. Orillia sp. ?

A male and female specimen from Forbes, Illinois, seems to agree
with Ormia R. D., except in following points: Apical cross-vein is
not bowed out, but is actually bowed in. The face is strongly cari¬
nate, which character is not mentioned by R. 1). The male specimen
is indicated by Forbes as bred from Orambus sp.

95. O'ompsomyia macellaria F.

Illinois (Forbes) ; twelve specimens, four males and eight females,
three of them only 5-5.5 mm. Two of these three are females and
one is a male ; only one out of the twelve has the scutellum and
thorax posteriorly metallic-blue, the others having these parts at most
deep metallic-green ; average length 7.5 mm. ; one measures 8.5 mm.

AMERICAN DIPTERA.

79

Liguanea Plain (Kingston) and elsewhere in Jamaica. I have
identified specimens of the adults sent me by Mr. Cockerell. The
larvae have been known for over a century as attacking man ; also
troublesome to animals (see Notes from the Museum, No. 63, Inst,
of Jamaica, Oct. 26, 1893; and Journ. Inst. Jamaica, i, pp. 372
(Jones and Cockerell) and 378).

ANTHOM Y HIKE.

96. Mydiea spermophilse n. sp.

Length nearly 8 mm. — Eyes light cinnamon-brown ; front rather narrow,
widening anteriorly nearly in line with face ; frontal vitta light brown, sides of
front very narrow and silvery pollinose; whole face and cheeks yellowish silvery
pollinose. Antennae deep yellow with an orange tinge, second joint moderately
short, third about three times as long as second ; arista brown, feathery, yellowish
at base ; palpi yellow, with some short black hairs ; proboscis fleshy, yellowish
brown at base ; posterior orbits and occiput cinereous pollinose. Thorax blackish,
silvery pollinose, leaving four black vitta:, the outer ones more interrupted at
suture than inner ones ; scutellum and abdomen black, thinly silvery pollinose,
in a somewhat marmorate pattern on abdomen and a little more thickly towards
bases of segments; venter silvery on sides, pale yellow on median basal portion.
Legs brownish, femora darker basally and yellowish on lower side distally ; coxse
and trochanters yellowish, tarsi dark ; pulvilli yellowish. Wings clear hyaline,
tegulae whitish.

Kingston, Jamaica. One specimen bred, November 22, from a
young Spermophila, probably S. bicolor L. Type in coll. Townsend.

Similar larvae have been noticed at Cinchona (5000 feet), Jamaica,
in nestlings. They have also been noticed in nightingale (Mimas
orpheus ) nestlings at Duncans, Jamaica (see Notes from the Museum,
No. 70, Institute of Jamaica, Nov. 22, 1893; and Journ. Inst. Ja¬
maica, i, pp. 381-82).

Mr. E. Stuart Panton has written me that he remembers seeing
nestlings of M. orpheus on several occasions, many years ago in
Jamaica (probably in Manchester), with two or three of these larvae
on either side of the base of the beak. The only case of the kind
ever recorded, so far as I know, is that of Ilylemyia ( Aricia ) pici
Mcq., the larva of which lives in a swelling on the wing of Picas
striatus in Santo Domingo. A third case is that of another ’antho-
myiid (different from the Jamaican one) which infests birds in
Trinidad, and of which I will treat in a separate paper.

97. Jlyila-a sp. ?

Colorado (Gillette). An anthomyiid, probably belonging to this
genus, bred from Pieris rupee.

TRANS. AM. ENT. SOC. XXII.

m'arch, 1895.

80

C. H. TYLER TOWNSEND.

MUSCIILE — Acalyptrat.e.

98. Eiixesfa liotata Wied.

Uray, Colo. An adult of this trypetid was reared, October 80,
by Prof. F. M. Webster, from a plant of Oxytropis lamberti collected
at Uray, September 5.

99. Loiielisea orcliideariim n. sp.

Length 1.5 mm. — Eyes dark brown, with a greenish tinge, probably greenish in
life ; front and face blackish, the former with several bristles near vertex. An¬
tennae black, very short, third joint rounded, arista short and comparatively
rather stout. Thorax shining metallic black, with a hardly greenish tinge; scu-
tellum with more of a greenish tinge. Abdomen deep metallic green, rather
short and somewhat pointed apically. Legs blackish. Wings much longer than
abdomen, clear hyaline, iridescent in oblique lights.

Kingston, Jamaica. One specimen bred, March 19, from a flower
stem of an orchid ( Oucidiutn luridum) brought from Kingston
Gardens, February 22.

The specimen agrees well with Sell i tier’s characterization of Lon-
cluea. The habit also agrees, as the larva of the European L. nigra
Meig. has been found in the stems of Verbascum, Angelica and
Carduus, while other species have a similar habit. The present spe¬
cies belongs to none of the three described by Wiedemann from the
neotropical region, viz., L. glaberrima W. I. ), chalybea (Brazil!,
and nigra (Brazil), and, while in this connection, the name nigra
Wied. (1830) is preoccupied by the European L. nigra Meigen ( 1826).
Wiedemann’s species may, therefore, be known as L. wiedemanni.
Type in coll. Townsend.

100. Drosophila sp.

VeraCruz, (Mexico (Cockerell); bred in box of Pnlvinaria and
Orthezia from Vera Cruz, Mex. Probably issued from Pnlvinaria
Intea Ckll., a beautiful yellow coccid. Length about 2.5 mm. Eyes
bright scarlet in life. Body of a general pale yellowish color. This
is quite possibly D. mexicana Mcq.

101. Lcucopis holla H. Lw.

I identify a specimen from Colorado, bred by Prof. Gillette from
plant-lice, as this species. It agrees very well with Loew’s descrip¬
tion, except that the second abdominal segment has two black spots
and no small dot between them, or scarcely a faint trace of one.
The antennae are but little silvery. It must, however, be considered
the same species. I should judge' that Dr. Williston’s L. belfnla
(“Insect Life,” i, 258) is a very distinct species. L. bella, as de¬
scribed by Loew, has a median basal dot and two larger dots on the
second abdominal segment, and a median dot on the third and fourth
segments, while L. bellida has a pair of dots divided by a median
line on each segment except the first.

ERRATA.

Page 35, lines 7 and 11 ; 49, line 8 from bottom ; 43, line 18; and 44, line 24, read
Proc. Cal. Acad. Sci. 1895.

Page 35, line 8, read Microdon xanthopilis.

“ 43, line 17 ; and 44, line 23, read El Taste.

“ 44, line 22, read Volucella lueasana.

“ 45, line 8 from bottom, read Volucella tolteca.

“ 48, line 11, read Eristalis brousi.

“ 50, line 14 from bottom, read F. W. Uricli.

NORTH AMERICAN COLEOPTERA.

81

STUDIES IX (OCCIXELLID K.

BY GEORGE H. HORN, M.D.

The Coccinellidse of Boreal America have been nearly completely
monographed by Crotch (Trans. Am. Ent. Hoc., 1873), who omitted
Scymnus and the genera with small species. In 1880 (Trans. Am.
Ent. Hoc. ) LeConte reviewed Hyperaspis. The Seym n ides have
never been studied since the earliest work by LeConte (Proc. Acad.
1852). The present paper was begun with the idea of supplementing
the works above cited, having Scymnus, especially, in view.

In no family of the entire order have genera been so unnecessarily
multiplied and founded on characters impossible of accurate defini¬
tion, the work of Mulsant being an instance of minute subdivision
in every respect. The later work of Crotch, while partly correcting
this unnecessary subdivision, has in many places fallen into the same
error. Chapuis (Genera Col. xii ) has greatly simplified the classifi¬
cation in the number of the larger subdivisions of the family and of
the genera.

As an instance of the difficulties met in the arrangement of the
genera Coccidula may be taken as a beginning. This genus is sepa¬
rated from the other pubescent Coccinellidse by the existence of some
larger elytral punctures substriately arranged. While this will an¬
swer fairly for the European species and our lepida, it fails for occi-
dentalis. LeConte has, however, suggested a more important char¬
acter (Classif. 1883, p. 114) in the fact that the anterior coxal cavi¬
ties are open behind.

In describing Cephaloscymnus (Trans. Am. Ent. Soc., 1873, p. 382)
Crotch observes the same character. From this it is evident that the
taxonomic value given it by LeConte cannot be accepted without
unnaturally associating the two genera. From the characters pro¬
posed by Chapuis Cephaloscymnus should be placed in the Ortaliites,
and I would remove Novius from the Scymnites to the same group.

Another difficulty arises in the species at present called Pentilia
in our lists. By the arrangement suggested in the Classification
these species fall in the Hyperaspites, but the table does not seem
applicable outside of our fauna.

TRANS. AM. ENT. SOC. XXII.

(ID

APRIL, 1895.

82

GEO. H. HORN, M. D.

The species at present known as Pentilia in our lists must be placed
in Smilia Weise (Deutsche Ent. Zeit. 1891, p. 285), and while they
have no epipleural fossets as required in the Hyperaspites it seems
unnatural to remove Smilia from association with Loth, Sticholotis
and Cryptognatha. In all these genera there are but five ventral
segments, whereas in the other Hyperaspites there are at least six.
The essential character of Smilia is the presence of an obliquely im¬
pressed line behind the anterior angles of the thorax. This line is
scarcely visible in misella.

S II ILIA Weise Pentilia f Lee.

The species are all quite small, the largest being but little longer
than one millimetre, the smallest less than one millimetre.

The species may be thus separated :

Impressed line of front angle of thorax very indistinct.

Thorax smooth; sutural stria of elytra indistinct . micella.

Impressed line distinct.

Elytra uniform in color, piceous or black.

Thorax distinctly punctate; elytra brownish, sutural stria distinct behind

the middle . .marginata.

Thorax not evidently punctate, but finely alutaceous, elytra piceous or black,

sutural stria not evident . ovalis.

Each elytron with oval red spot, the two narrowly separated at suture.

Thorax not punctate, sutural stria not distinct . coccirtivora.

S. misella Lee., Proc. Am. Philos. Soc., 1878, p. 400.

Widely distributed from Canada to Florida, Illinois to Texas.

S. marginata Lee., loc. cit.

Marquette, Mich., and Ithaca, N. Y.

S. ovalis Lee., loc. cit. ; Felschei Weise, Deutsche Ent. Zeit. 1891, p. 288.

Florida. I have also specimens from southern California not dis¬
tinguishable, except they are more evenly black in color ; one is
labeled “ collected on Finns monophylla.”

S. cocoidi vora Ashmead, “ Orange Insects” (printed privately), Jacksonville,
Fla., 1880, p. 10.

Depredates on the scale insects of the orange.

CRYPTOGNATHA Muls.

The species of this genus are known from any others in our fauna
bv the prosternum in front forming a lobe concealing the mouth-
parts in repose. The middle and hind legs are received when re-

NORTH AMERICAN COLEOPTERA.

83

tracted in depressions,, and the knees form fovese in the epipleurse
even to their outer edge. There is to be seen a faintly impressed
line near the front angles of the thorax, closer, however, to the front
angles and less impressed than usual in Smilia.

These species are known :

Black shilling, head amt sides of thorax often pale; length .07 inch, .pusilla.
Castaneous, thorax at middle broadly piceous ; beneath black ; length .06 inch.

ratal ilia*.

Testaceous; length .035 inch . pallida.

< . pusilla Lee., Proc. Acad. 1352, p. 135; puncticollis Lee. loc. cit.

Broadly oval and convex, a few punctures on the head and thorax, surface
otherwise polished.

Two forms occur which are probably sexual :

C. puncticollis is entirely black, the legs usually piceous or black.
C. pusilla has the sides of the thorax variably pale, head and
legs bright yellow.

Occurs from Michigan to Georgia, westward to Nebraska and
Arizona.

C. catalime n. sp. — Similar in form to pusilla, castaneous, middle of thorax
and narrow space at base of elytra piceous, body beneath black, head and legs
bright yellow. Head smooth, with a few short erect hairs. Thorax with few
scattered punctures near the middle. Body beneath smooth, last ventral segment
paler at middle. Length .06 inch. ; 1.5 mm.

One specimen Catalina, S. Cal., sent me by Mr. H. C. Fall.

C. pallida Lee., Proc. Am. Philos. Soc. 1878, p. 400.

Precisely similar to pusilla in form and sculpture, but is very
much smaller and entirely testaceous.

One specimen (cab. Lee.) Sand Point, Fla.

Sevang ium maculigerum Blackb. seems to belong to this genus. This
is one of the Australian species, of which probably a few were in¬
troduced into California, but none have since been found. Specimens
were sent me by Mr. Ivoebele.

SCYIttBTUS Kug.

The only attempt at a treatment of our species of Scyrnnus was
made bv Dr. LeConte in 1852 (Proc. Acad. Nat. Sci. ), since which
time nothing has been done other than the description of three new
species by Crotch and three by LeConte. In that paper twenty-seven
species were recognized, while seven described previously by Mulsant
and Melsheimer remained unidentified, but have since been deter-

TRANS. AM. ENT. SOC. XXII.

APRII.. 1895.

84

GEO. H. HORN, M. D.

mined with but one exception. This condition forms a good basis
for the resumption of the study of the species. In the “ Zoology
of Eugenies Resa” Boheman has described three species — atramen-
tarius, califomicus and infuscatus as from San Francisco, which have
not been identified, and from the well-known errors of locality in
that work may be safely rejected from our faunal list, as well also S.
cyanescens Muls., which seems to be of a style of coloration unknown
in our species. S. arcimtus Rossi, a well-known European species
appears in Crotch’s “ Check List” on the authority of a specimen
in LeConte’s cabinet the origin of which could never be ascertained.
No other specimen has has ever been captured, and this name may
also be dropped. In the “ Catalogus” a S. jioridanus Muls. is given.
This was described as, and undoubtedly is, a Hyperaspis. A recent
examination of S. nigripennis Lee. shows it also to be a Hyperaspis.

The present attempt to study Scymnus is merely an endeavor to
make a little advance, to separate our species with more certainty,
and finally to place in the hands of students some information by
means of which still better results may be obtained. The separation
of the species is by no means an easy task, especially among those
in which the elytra are tipped with red. Scymnus is one of those
genera in which nominal species can he most easily separated with a
paucity of material, the larger the series with the usual variations
the greater the difficulty.

Scymnus varies in outline from broadly oval, in which the outline
is practically continuous, to oblong in some cases with the thorax
narrower than the elytra, thus interrupting the outline.

The surface is always pubescent, but in a variable manner among
the species, as a general rule very sparsely in the species of the first
two divisions. In those in which the pubescence is distinct the hairs
may be arranged without order, or there may be a somewhat spiral
arrangement giving the surface a holosericeous appearance. To the
experienced eye this may he an aid in separating closely allied spe¬
cies, but from the fugitive nature of the pubescence no mention is
made either of its existence or character in the descriptions which
follow.

The head shows no characters of value in separating the species.
It has been observed, by LeConte and Mulsant, that the head is in
some species yellow in the male and piceous in the female, but this
is not constant, as the head may be in either color in the two sexes.
The antennae are nearly always pale in color.

NORTH AMERICAN COLEOPTERA.

85

The thorax, always narrower in front, varies in form as shown in
the sketches annexed. The basal marginal line is usually very dis¬
tinct, rarely obliterated.

The elytra vary in outline with the form of the species, and are
always confusedly punctured, from densely to very sparsely, and from
coarse to very tine. In a series of moderate size the coarseness of
the punctuation is a variable quantity, and species cannot be safely
separated thereby. Those species in which there is color ornamen¬
tation show the usual variation of color characters, but it is remark¬
able that the extent of variation is so little in those species with the
apex more or less red.

The epipleune are horizontal and without fovese for the reception
of the knees. There is, however, a partial exception in caurinus, a
species of the third group.

The prosternum exhibits two modifications w hich are not so sharply
defined as to enable the characters to be used for systematic purposes
with certainty. In the species of the first two groups the prosternum
is either flat or slightly convex without the ridges, while in the next
two groups there is on each side a finely elevated line usually the
entirely length of the prosternum, the two convergent in front.

The metasternum is usually smoother at middle than at the sides.
On each side behind the middle coxie there will be observed an ele¬
vated curved line beginning at the inner edge of the meso-coxal
cavity curving backward and outward joining the suture between
the metasternum and its episternum. In the first two groups this
juncture occurs posteriorly to the anterior third of the suture, while
in the next twTo groups the arc is more nearly complete the line joining
the suture near the front, very often at the angle.

The abdomen is said to be composed of five segments, but in the
first two groups there are six very distinct segments in both sexes,
while in the next two groups the occurrence of the sixth segment is
not frequently observed. Fearing that I had only females of the
first two groups for examination I directed the attention of Mr. H.
C. Fall, of Pomona, Cal., to the species which he might observe and
from specimens collected in coitu it has been found that the sexes
are alike in the number of segments and the male has no apical
impression. The suture separating the first two ventral segments
varies greatly in distinctness, being at times nearly obliterated at
middle and sometimes as distinct at middle as at the sides. Mr.
Blackburne (Trans. Royal Soc. South Aust. xv, 1892) restricts the

TRANS. AM. ENT. SOC. XXII.

APRIL. 1895.

86

GEO. H. HORN, M. D.

name Scymnus for those with the suture feeble at middle and pro
poses Scymnodes for those with the distinct suture. This character
fails to have any value in our series of species.

The first ventral segment exhibits the character of greatest value
in the division of the species in groups. Posteriorly to the coxal
cavity is a slightly elevated line beginning at the inner edge of the
cavity passing more or less obliquely and curved toward the first
suture sometimes joining the suture and continuous with it, or run¬
ning parallel with the suture or recurving to the front and when entire
ending near the anterior angle of the segment. By some authors
the area enclosed by this line is spoken of as the “abdominal plate,”
but in the present essay the more definite term “ metacoxal line” has
been adopted. In the species of the last two groups in this essay
Dr. LeConte always mentioned the sculpture of the abdominal plates,
but there has been observed a lack of constancy within specific limits
and too little variation between the species to render the description
valuable. As a rule, in the first two groups the area is finely punc¬
tured, or exactly as the rest of the superficial area, while in the last
two groups the anterior portion is coarsely punctured and the poste¬
rior comparatively smooth.

The claws vary in form between the species and sometimes between
the sexes. In some of the smaller forms of the first two groups the
claws are simply dilated at base or feebly toothed. In the other
species the claws are provided with an appendix sometimes of such
length as to make the claw appear cleft, in these the female has a
shorter appendix. Some interesting notes on this character among
the species collected by him have been made by Mr. H. C. Fall, but
beyond their mention in a general way I have not been able to utilize
them.

The secondary sexual characters are not, as a rule, conspicuous.
In the first two groups I have not observed any sexual differences.
In the next two groups the fifth ventral of the male is impresso-
emarginate in a not greatly varying degree. Occasionally the sixth
segment is apparent when the impression is somewhat cupuliform.
In the form considered marginicolUs the male has on the first seg¬
ment a small tubercle at middle near the suture with very short hair,
while in puncticollis the male has a median smooth area, on each side
of which is a narrow pubescent region. In cervical i s the males are
very evidently less broadly oval than the females.

NORTH AMERICAN COLEOPTERA.

87

Color characters have their utility in the separation of species of
Scymnus, but some care and no little experience is required in their
use. In guttulatus the elytra may become almost entirely yellow,
while in nebulosus the small black spots may be so numerous and
large that the elytra appear almost entirely black. The legs vary
in color. As a general rule the species of the first two groups have
pale legs. In other species two colors exist — piceous and red. The
former color will vary to testaceous, while the latter may become
dark brown. It seems to me that too strict an insistance on the color
of the legs as of specific value is not advisable from the known ten¬
dency to variation.

From the characters given in the preceding remarks and the com¬
ments upon them it is evident that primary groups based on the form
of the metacoxal line afford the most natural arrangement of the
species.

Metacoxal line incomplete.

Metacoxal line joining the first ventral suture . Group A.

Metacoxal line parallel with the first suture . Group B

Metacoxal line recurved at end . Group C.

Metacoxal line forming an entire arc beginning at the inner border of the coxal
cavity, varying in the degree of its curve, ending at or near the front angle
of the first segment . Group D.

Group A.

In this group the metacoxal line passes in an oblique curve from
the inner edge of the posterior coxal cavity and joins the suture,
becoming evanescent. The species are all of small size, the elytra
in the majority being ornate with spots or bands. The
prosternum is without elevated lines, or at most exhibits
very faint traces of them. The metacoxal arc forms a
very open curve joining the met-episternal suture near its middle.
The abdomen has six distinct segments in both sexes.

The species may be separated as follows :

Elytra piceous, variably ornate . . . .

Elytra yellowish testaceous . 7

A post basal, slightly oblique yellow band on each elytron. .. . halloa! us.

Elytra with one or two spots on each . .

Elytra narrowly tipped with yellow . 6

3. — One spot on each elytron, slightly in front of middle- • . higciiiiiuuis 'J,
One spot on each elytron often joined to a large pale apical area.

bigeiumeii* 9 .

Two spots on each elytron . 4

TRANS. AM. ENT. SOC. XXII. APRIL, 1895

GEO. H. HORN, M. D.

88

4. — Head and thorax yellow, the latter sometimes with piceous basal spot.

Liebecki.

Head and thorax black . 5.

5. — Form oval, elytral spots small and oval . mjrrmi«lon.

Slightly oblong, spots somewhat transverse . quadritsrniatns.

6. Thorax entirely yellow, elytra very narrowly yellow at tip. . xantliaspis.

Thorax yellow at sides, elytra with a large yellow spot at apex.

terminatus.

I'emoralis.

7. — Thorax smooth, elytra sparsely punctate . debilis.

The species of this group are from the Atlantic region, except
deb Ilia from California, but specimens have occurred in Florida which
I cannot at present separate from it.

S. balteatus Lee.— Oblong, nearly a half longer than wide, head and thorax
reddish, elytra piceous, with a rather broad, slightly oblique yellow band in front
of middle, touching the side, but not crossing the suture. Head scarcely visibly
punctate. Thorax narrow in front, sides moderately arcuate, surface very sparsely,
finely punctate, a fine basal marginal line. Elytra distinctly, not closely punc¬
tate ; prosternal plate flat, wider in front ; meso- and metasternum reddish, the
latter scarcely punctate, mesocoxal line joining the suture nearly at its middle.
Abdomen piceous, sparsely punctate, with six distinct segments : metacoxal line
joining the first suture. Legs yellow. Length .06 inch. ; 1.5 mm. PL 1, fig. 5.

This species may be at ouce known by its oblong form and the
band-like marking.

Dr. LeConte uses the expression “ post-coxal arcs entire,” but this
is an error of observation caused by a smoother oblique space divid¬
ing the meta-coxal plate, and when in certain lights the arc seems
complete.

Haulover and Sand Point, Fla.

S. bigemmeus u. sp. — Oval, the margin very nearly continuous, head yel¬
low, thorax piceo-testaceous, paler at the sides ; elytra black, with a small yellow
spot on each slightly in front of the middle, apex narrowly pale. Head and
thorax scarcely visibly punctate, the latter slightly narrowed in front, sides dis¬
tinctly arcuate, the basal marginal line scarcely visible. Elytra sparsely and in¬
distinctly punctate ; prosternum punctate, not distinctly margined at the sides ;
metasternum at sides almost smooth, the mesocoxal line joining the suture near
the middle. Abdomen yellow, sparsely punctate, metacoxal line joining the
suture. Legs yellow. Length .05 inch. ; 1.25 mm. PL I, fig. 3.

Since the description was written from the unique male in my col¬
lection I have seen several females in the collection of Hubbard and
Schwarz. These have the thorax entirely yellow, and in addition
there is a large yellow area around the apex which is sometimes
joined to the discal spot. The sketch of the female (PL I, tig. 4j
gives on each elytron the variations.

NORTH AMERICAN COLEOPTEKA.

89

This is one of our smallest species. It is known by the single spot
on each elytron a little in front of middle. There are six ventral
segments.

Hub. — Florida, Punta Gorda and Biscayne Bay.

S. Liebeeki n. sp. — Oval, convex, a slight entering angle at base of thorax,
head and thorax yellow, the latter darker in front of scutellum, elytra piceous, a
narrow, apical, pale border, a small round yellow spot in front of middle nearer
the suture than side, a slightly sinuous transverse band one-third from apex
touching the side, but not the suture. Head scarcely punctate. Thorax distinctly
punctate, not closely nor coarsely, a tine basal marginal line. Elytra moderately,
coarsely and closely punctate : prosternal plate slightly narrowed in front, with
feebly indicated, lateral, elevated lines : metasternum closely punctate at the
sides, the mesocoxal line joining the suture at a right angle near its middle.
Abdomen reddish yellow, punctate; metacoxal line joining the suture and con¬
tinuous with it. Legs yellow. Length .05 — .06 inch. ; 1.25 — 1.5 mm. PI. I, fig. 6.

The abdomen lias six distinct segments. At first glance this spe¬
cies resembles color ad ensin, but in that species the anterior elytra!
spot is larger, the posterior differently formed, and the metacoxal
line is distant from the suture.

Hob. — Southern New Jersey, collected by Mr. Charles Liebeek,
whose name I have pleasure in giving to the species.

Specimens very recently examined from Elkhart, Ind., have a
well-marked, thoracic, piceous spot. The posterior elytra! spot is
also oval and not transverse, the markings thus resembling myrmidon.

S. myrmidon Muls. — Oval, black, shining, each elytron with two sharply-
defined yellow spots, placed one-third from base and one-third from apex, nearer
the suture than the side, apical border very narrowly and indistinctly pale. Head
brown, or paler, sparsely finely punctate. Thorax narrower in front, sides mod¬
erately arcuate, sparsely finely punctate, a little more closely near the base, a fine
basal marginal line. Elytra much more coarsely punctate, not closely but equally.
Prosternal plate smooth, triangular; metasternum at sides sparsely punctate
mesocoxal line joining the suture one-third from the front. Abdomen rather
sparsely punctate, shining, the metacoxal line joins the first suture and runs coin¬
cident with it: femora piceous, tibise and tarsi yellow. Length .06— .08 inch.:
1.5 — 2 mm. PI. I, fig. 9.

The abdomen is brownish, paler toward apex or yellow, composed
of six distinct segments, the first suture less distinct at middle.

Ha b. — Pennsylvania, M ary 1 an d .

S. quadritseniatus Lee. — Oblong, fully one-third longer than wide, pi¬
ceous, head and side of thorax yellow, each elytron with two yellow spots, the
anterior larger, oblique and oval, the posterior reniform and transverse. Head
scarcely punctate. Thorax slightly narrower in front, sides moderately arcuate,
surface moderately closely punctate, especially at the sides. Elytra n ore sparsely

(12) 1895.

TRANS. AM. ENT. SOC. XXII.

90

GEO. H. HORN, M. D.

punctate than the thorax ; prosternal plate narrower in front with a slight ele-
vateil line each side; metasternum sparsely punctured at the sides, the mesoeoxal
line joining the suture near middle of its length. Abdomen piceous, paler at
apex, composed of six segments; metacoxal line joining the first suture. Legs
yellow. Length .06 inch.; 1.5 mm. PI. I, fig. 1.

Resembles myrmidon, but more oblong, less punctate and with
sides of thorax yellow.

LeConte notes a variety in which the spots are confluent.

Hub. — Enterprise, Capron and Biscayne, Fla. ; Opelousas, La.

S. xantliaspis Muls. — Oval, very little longer than wide, outline of margin
nearly continuous, piceous; head, thorax, scutellum and narrow apical elytral
border yellow. Head sparsely finely punctate. Thorax narrower at apex, sides
feebly arcuate, surface sparsely finely punctate, basal marginal line feeble ; punc¬
tures of elytra not deep nor closely placed ; scutellum often yellow; prosternum
much narrowed at middle, punctate, not margined; metasternum piceous, not
closely punctate at the sides, mesoeoxal line arcuate, joining the suture one-third
from the front. Abdomen yellow, punctures fine and not close, metacoxal line
joining the first suture. Legs yellow. Length .06 — .07 inch. ; 1.5 — 2 mm. nearly.

The abdomen has six segments, the terminal very short. This
species resembles cervicalis, but is smaller, and has differently formed
coxal arcs.

Among the species unknown to LeConte (Froc. Acad. 1852, p. 141 )
this was placed as a synonym of och rodents, which is now considered
merely a variety of thoracimis. The “ Catalogus” erroneously places
xantkaspis as a variety of terminatus.

Hab. — Georgia, Florida and Texas.

S. t erilli iia I ns Say. — Oval, very little longer than wide, margin nearly
continuous, piceous; head, margin of thorax and elytral apex yellow. Head
sparsely punctate. Thorax distinctly narrower in front, sides moderately arcuate,
disc moderately closely punctate, more closely near the sides. Elytra a little more
coarsely, but less closely punctured than the thorax ; prosternum narrow, an ele¬
vated line each side ; metasternum closely punctate at the sides, the mesoeoxal
line joining the suture one-third from the front. Abdomen yellow, piceous at
base, the metacoxal line joining the suture and continuous with it. Legs yellow.
Length .06 — .075 inch.; 1.5 — 2 mm. nearly. PI. I, fig. 15.

The abdomen has six distinct segments. The yellow apical region
of the elytra occupies about a fifth or fourth along the suture. The
abdomen may be almost entirely yellow, frequently the two basal
joints are dark. The pale margin of the thorax varies in extent,
and may continue along the apex.

Hub. — Pennsylvania, New Jersey, North Carolina, Georgia, Texas.

NORTH AMERICAN COLEOPTERA.

91

S. femoralis Lee.

This species resembles terminatus so closely that it may probably
be considered a variety. The unique, on which it is founded, has
the thorax at sides and in front more narrowly bordered with yellow
than in terminatus. The abdomen is entirely black, but the color
varies considerably in terminatus. LeConte seems to have considered
the color of the legs important, but I do not find the thighs black
as he states, the color seeming to be merely a very dark red, as if
discolored by grease.

Hub. — Pennsylvania. Specimen unique.

S. debilis Lee. — Oval, margin slightly interrupted at humeri, about a fourth
longer than wide, form not very convex, entirely yellowish testaceous. Head
and thorax very sparsely punctate, the latter slightly narrowed in front, sides
feebly arcuate. Elytra sparsely, obsoletely punctate; prosternum narrower in
front, a slight elevated line each side; metasternum sparsely punctulate, the
mesocoxal line arcuate, joining the suture near the apex. Abdomen sparsely
punctate, the metacoxal line joining the first suture and continuous with it.
Length .04 — .05 inch.; 1 — 1.25 mm.

The abdomen has six very distinct ventral segments.

Owing to the fact that the condition of the unique type did not
permit a proper examination, this species was placed among those in
which the ventral arc is entire.

Hub. — California, San Jose and Alameda. I have also specimens
from Marquette, Mich., and Florida, which I am unable at present
to separate from those from California.

Group B.

The metacoxal line passes obliquely toward the first ventral suture
and with a gradual or abrupt bend continues parallel with the suture.

The prosternum is convex or flat, with only mere traces
of the elevated lines. The mesocoxal arc is rather open
and joins the met-episternal suture near the middle.
The abdomen has six distinct segments in both sexes.
The species may be arranged in the following manner :

Elytra entirely piceo-testaceous or ferruginous . i n I rusiis.

Elytra piceous, maculate . 2.

2. — Each elytron with one spot . •• . 3.

Each elytron with two spots . 4.

3. — Thorax yellow, elytral spot large and slightly post-median. . bivulnerus.
Thorax black.

Legs ferruginous, elytral spot one-third from apex and ill-defined.

bisignatus.

Femora piceous, tibiae and tarsi yellow, elytral spot well defined, post-

median . flavilrons.

Thorax brown, elytral spot large and gradually suffused . sordidns.

TRANS. AM. ENT. SOC. XXII. APRIL, 1895.

92

GEO. H. HORN, M. D.

4. — Form decidedly elliptical, body beneath black, legs ferruginous, -oriiatus.

Form broadly oval.

Head and thorax yellow, posterior elytra! spot somewhat triangular, abdo¬
men black . <*olora«len<sis.

Head and thorax at sides yellow, posterior elytral spot very irregular, tip
pale; abdomen piceous. . amahili*.

Head black, anterior an gles of thorax sometimes yellow, posterior elytral
spot transverse, sometimes divided ; abdomen black .gnttulat us.

Of the above species six are from the Atlantic region and three
from California.

X. intrusus n. sp. — Oval, very little longer than wide, margin continuous,
moderately convex, ferruginous. Head sparsely punctate. Thorax narrower in
front, sides feebly arcuate, disc sparsely indistinctly punctate, basal marginal line
indistinct. Elytra moderately coarsely, not closely punctate, smoother near apex ;
margins of prostemum slightly elevated between the coxae; metasternum closely
punctate at the sides, the mesocoxal arc joining the suture one-third from apex.
Abdomen punctate at the sides, the metacoxal line parallel with the suture, but
not reaching the side margin. Length .06 — .07 inch. ; 1.5 — 2 mm. nearly.

The abdomen has six distinct segments. Resembles debit is, but is
more evenly oval and more convex. The form of the metacoxal
line will readily separate the two.

Huh. — Maryland, North Carolina, Texas, Arkansas, Missouri.

H. bivulnerus n. sp. — Regularly oval, sides of thorax and elytra continu¬
ous, piceous, head and thorax and a moderately large oval spot slightly post-median
on each elytron, yellow. Head and thorax sparsely, finely punctate, a scarcely
distinct basal marginal line. Elytra moderately closely punctate; prosternum
rather coarsely punctate, without marginal line ; metasternum at sides not closely
punctate, mesocoxal line arcuate, joining the lateral suture, a short distance from
the front. Abdomen reddish, moderately densely punctate, metacoxal line par¬
allel with the first suture. Legs yellow. Length .06 inch. ; 1.5 mm. PI. I, fig. 10.

The abdomen has six distinct segments.

Huh. — Florida, Biscayne and Key West (Schwarz).

S. bisignatns n. sp. — Oval, margin slightly interrupted at the base of the
thorax, black, moderately shining, each elytron with a transversely oval red spot
behind the middle. Head very indistinctly punctate. Thorax slightly narrower
in front, sides feebly arcuate, surface very sparsely finely punctate, basal mar¬
ginal line very fine. Elytra coarsely not closely punctate ; prosternal plate
broader in front, coarsely punctured, slightly margined at the sides; metasternum
coarsely punctured at the sides, the mesocoxal line arcuate joining the suture
near the front. Abdomen rather sparsely punctate, the metacoxal line distant
from the suture and slightly arcuate, not parallel with the suture. Legs reddish.
Length .08 inch.: 2 mm. PI. I, fig. 11.

This species resembles bioculatus , but the reddish elytral spot is
larger and less sharply defined. In the form of the metacoxal line

NORTH AMERICAN C'OLEOPTERA.

93

the present species approaches the form seen in the nmerican it* group.
The abdomen has six distinct segments.

Hub. — Siskiyou County, Cal. ( lvoebele, 39).

S. flaviffrons Mels. — Oval, black, an oval yellow spot on each elytron one-
third from apex equally distant from side and suture, head often, tibiae and tarsi
always yellow. Head sparsely punctate. Thorax narrower in front, sides mod¬
erately arcuate, surface sparsely punctate, a fine basal marginal line. Elytra
more coarsely, but less closely punctate than the thorax. Body beneath black ;
metasternum nearly smooth at middle, closely punctate at the sides ; mesocoxal
line joins the episternal suture one-third from the front. Abdomen moderately
coarsely and closely punctate; metacoxal line parallel with the first ventral
suture. Length .06 — .08 inch. ; 1.5 —2 mm. PI. I, fig. 7.

Two fairly well marked varieties occur in this species:

/S'. flavifrons Mels, with a yellow head ; subvarieties occur with the
thorax entirely black, or with the side margin yellow, sometimes
extending along the apex. Specimens occur with only the front
angles yellow.

/S', bioculatas Muls. — 1 This has a black head and thorax. Mulsant
indicates three varieties of this. One is the typical form with the
spot of moderate size, the second has a very small spot, ( guttiger ) the
third has the spot much extended, and in addition has an apical pale
border ( marginellus ). This latter is to me doubtfully from our
fauna, and seems to be a distinct species.

All the specimens examined seem to be females. The abdomen is
very plainly composed of six segments, and the suture between the
first and second well marked in its entire extent.

Hub. — Canada, Pennsylvania, New Jersey, Ohio, Illinois, Georgia.

S. sortl i<l us n. sp. — Oval, outline regular, about a fourth longer than wide,
normal color piceous, each elytron with a large paler spot, which leaves only a
narrow border at sides, base and suture darker, sometimes entirely ferruginous.
Head and thorax scarcely punctate, the latter narrower in front, with feebly ar¬
cuate sides, the basal marginal line indistinct. Elytra moderately closely punc¬
tate; prosternum convex, coarsely punctate, not margined at the sides; meta-
sternum coarsely punctured at the sides, the mesocoxal line arcuate, joining the
suture near the middle. Abdomen moderately closely punctate, the metacoxal
line not joining the first suture. Legs yellow. Length .06 — .08 inch. ; 1.5 — 2 mm.
PI. 1, fig. 16.

Iii color this species varies from ferruginous to piceous, in the latter
case the large pale space on the elytra is defined, but not sharply.
The abdomen has six segments.

Hub. — California, Los Angeles and Owens Valley.

TRANS. AM. ENT. SOC. XXII.

APRIL. 1805.

94

GEO. H. HORN, M. D.

S. oi'H :i 1 1 is Lee. — Elliptical, black, dull, each elytron with two obliquely
oval and moderately large orange-yellow spots, legs reddish, femora often darker.
Head rather sparsely and finely punctured. Thorax narrowed in front, sides
feebly arcuate, surface finely, sparsely and equally punctulate, a fine basal mar¬
ginal line. Elytra more coarsely punctate than the thorax ; metasternum coarsely
punctured at the sides, the mesocoxal line joining the suture one-third from the
coxa. Abdomen coarsely not closely punctate, metacoxal line not touching the
first ventral suture and turned slightly forward at its outer end. Length .08 — .09
inch. ; 2 mm. more and less. PI. I, fig. 12.

The elvtral spots are not very strongly defined. The anterior is
oval and oblique, the posterior more transverse, the two spots may
touch.

The abdomen in the only specimen before me, a female, is com¬
posed of six distinct segments, the first suture distinct in its entire
extent.

Hab. — Lake Superior region and Massachusetts.

!•>. coloradeusis n. sp. — Oval, thorax slightly coarctate at base, head and
thorax yellow, the latter darker at middle of base, elytra piceous, on each a
slightly oblique rhomboidal spot one-third from base, a triangular spot emarginate
in front, one-third from apex. Head very sparsely punctate. Thorax scarcely
narrowed in front, sides feebly arcuate, surface sparsely punctate, a fine basal
marginal line. Elytra much more distinctly punctate, but not closely ; prosternal
plate rather broad, flat, coarsely punctured; metasternum coarsely punctured at
the sides, the mesocoxal line arched joining the suture one-third from the apex.
Abdomen piceous, not closely punctate, metacoxal line not joining the suture,
but parallel with it. Legs yellow. Length .06 inch. ; 1.5 mm. PI. I, fig. 2.

I have seen but one specimen of this species. The elytral mark¬
ings resemble some of the varieties of guttulatus, but the present
species has a yellow head and thorax. There are six distinct ventral
segments.

Hab. — Garland, Col. (Schwarz).

S. amabilis Lee. — Oval, not very convex, piceous, or almost black; head,
sides and apex of thorax yellow, elytra with an anterior, oblique, irregular fascia,
composed of two spots united by a narrow isthmus, apex yellow, curving inward
one-third from apex forming a lunule, inside of which is an irregular spot. Head
almost smooth. Thorax scarcely narrower in front, sides feebly arcuate, surface
finely sparsely punctate, a fine basal marginal line Elytra moderately coarsely,
not closely punctate ; prosternal plate parallel, margined at tbe sides, punctate at
middle; metasternum closely punctate at the sides, mesocoxal line joining the
suture nearly at middle. Abdomen piceous, paler at sides and apex, composed
of six segments, the terminal not prominent ; metacoxal plate shorter than the
segment, the line curved slightly forward at its outer end. Legs yellow. Length
.06 — .08 inch. ; 1.5 — 2 mm. PI. I, fig. 8.

The markings of the elytra are not greatly variable, although at
times broadened ; they, however, preserve the type above described.

Hab. — Louisiana.

NORTH AMERICAN COLEOPTERA.

95

S. guttulatuM Lee — Oval, sides of thorax and elytra nearly continuous
black, each elytron with an anterior oblique spot composed of two, which may
be joined or separate; at posterior third a transverse band not touching the side
or suture, apex indefinitely paler. Head and thorax sparsely and very finely
punctate, the thorax with fine basal marginal line; prosternum punctate, without
marginal line; metasternum closely punctate at the sides, the mesocoxal line
joining the lateral suture one-third from the coxa. Abdomen moderately closely
punctate, the metacoxal line curving outwardly not joining the suture, but par¬
allel with it. Legs piceous. Length .06 — .08 inch. ; 1.5 — 2 mm. PI. I, figs. 13, 14.

This species varies in the extent of its elytral markings. The head
may be yellow, and also the anterior angles of the thorax. The ab¬
domen has six distinct segments.

I lab. — California, Alameda County, and the vicinity of San
F rancisco.

Group C.

The metacoxal line in the species of this group passes in an ob-
licpie curve toward the first suture and then gradually curves forward,
but is not complete. The mesocoxal arc curves forward
and joins the suture near the front angle of the met-
episternum. The prosternal elevated lines are usually
entire and distinct. The abdomen has but five segments,
but in some females a sixth is visible. The species are not numerous,

and may be thus separated :

Elytra yellowish testaceous.

With numerous small black spots . nelMiloSUS.

Without spots . . . Plielpsii.

Elytra black, with ante-median obliquely oval red spot . circumspectus.

Elytra black, with large, apical, pale area . opaculuM.

Elytra entirely black.

Abdomen more or less yellow, prosternal lines entire . ainericitnus.

Abdomen black, prosternal lines short . caiirinas.

S. nebnlosas Lee. — Oval, outline nearly continuous, about one-fourth
longer than wide, moderately convex, above pale rufo-testaceous, the elytra with
small, irregularly placed spots, body beneath black. Head sparsely punctate.
Thorax slightly narrower in front, very sparsely finely punctate, basal marginal
line nearly obsolete. Elytra moderately coarsely, not closely punctate; proster¬
num narrowed in front, each side with an elevated line ; metasternum closely
punctate at the sides, the mesocoxal line forming a nearly complete arc. Abdo¬
men sparsely punctate, the metacoxal line arched, distant from the first suture,
incomplete externally. Legs testaceous, femora sometimes darker. Length .07 —
.09 inch. ; 2—2.25 mm.

Iii the males the fifth ventral is broadly, but slightly emarginate ;
in the females a sixth segment is very distinctly visible.

In some specimens the disc of the thorax is clouded with piceous.

Hah. — California, Alameda County and Colorado River.

TRANS. AM. ENT. SOC. XXII.

APRIL,. 1895.

96

GEO. IT. HORN, M. D.

S. Phelpsii Crotch. — Oval, outline nearly continuous, very little longer
than wide, moderately convex, rufo-testaceous. underside never entirely black.
Head and thorax sparsely punctate, the latter narrower in front, sides feebly
arcuate, basal marginal line indistinct. Elytra moderately, not closely punctate,
the punctures coarser and finer intermixed ; prosternum narrower in front, a fine
elevated line each side; metastemum closely punctate at sides, mesocoxal line
curved, joining the suture behind the apex. Abdomen less closely punctate, the
metacoxal line arcuate close to the suture, incomplete externally. Legs rufo-
testaceous. Length .08 inch. ; 2 mm.

The mesosternum is always piceous, the abdomen may be piceous,
except at apex, or may be entirely pale.

This species resembles nebulosus, but the two differ in the meta¬
coxal arc. Here it approaches within a fifth of the length of the
segment to the first suture, and in nebuloms is one-third from the
suture. The abdomen is similarly formed in the two species.

Hub. — British Columbia, Oregon, northern California and Nev.

S. circumspect us n. sp. — Broadly oval, convex, black, each elytron with
an oval orange spot, in front of middle, placed slightly obliquely, the outerside
truncate. Head moderately closely punctate. Thorax narrowed in front, sides
moderately arcuate, disc rather closely not coarsely punctate, basal marginal line
distinct. Elytra rather coarsely punctate, closely but not densely; prosternum
punctate, with elevated, convergent lines; metasternum closely punctate at the
sides, mesocoxal line arcuate, joining the suture near the front. Abdomen closely
punctate, metacoxal line arcuate, not reaching the suture, incomplete externally:
femora piceous, tibia; and tarsi yellow. Length .10 inch. ; 2.5 mm. PI. II, fig. 4.

rflie abdomen has five segments. This species is easily known,
being the only one in our fauna with the incomplete, but arcuate
metacoxal line having an elytral spot.

Hub. — Lookout Mountain, Tenn., Louisiana (Like).

S. opaculus n. sp. — Oval, convex, very little longer than wide, margin
continuous, piceous, head and sides of thorax broadly yellow, elytra with an
apical pale space occupying a fourth, the anterior edge on each side convex in
front. Head sparsely punctate. Thorax narrower in front, sides arcuate, disc
sparsely finely punctate, basal marginal line indistinct. Elytra moderately closely
and more coarsely punctate than the thorax: prosternum punctate, the lateral
elevated lines indistinct; metasternum coarsely and closely punctate at the sides,
the mesocoxal line joining the suture a little in front of the middle. Abdomen
yellow at sides and apex, composed of five segments, closely punctate, the meta¬
coxal line touches the suture and curves feebly forward. Legs yellow. Length
.10 inch. ; 2.5 mm.

This species 1ms considerable superficial resemblance to Bnillei,
but is darker, differing especially in the form of the metacoxal line,
which is a complete arc in Bnillei. There is a distinct epipleural
fovea for the reception of the knee of the middle leg.

One specimen, Colorado.

NORTH AMERICAN CO LEO FT ERA.

97

S. americanus Mills. — Broadly oval, convex, color variable, thorax usually
orange with a central piceous space, elytra narrowly tipped with red. Head and
thorax sparsely punctate, the latter narrowed in front with feebly arcuate sides,
basal marginal line distinct. Elytra coarsely and moderately closely punctate ;
prosternum with convergent elevated lines, which are variable in distinctness;
metasternum rather coarsely and closely punctate at the sides, the mesocoxal line
arched, joining the suture near the front. Abdomen more or less yellow, mod¬
erately closely punctate, the metacoxal line arcuate, approaching very close to the
first suture. Legs«usually yellow, but varying to black. Length .08 — .12 inch. ;
2 — 2.5 mm.

The abdomen has but five segments, the last two of the male feebly
broadly emarginate. Usually the head is yrellow, specimens are not
rare black. The thorax may be almost entirely yellow, usually with
a median piceous space ; sometimes the angles only are yellow, while
several specimens before me are entirely black. The abdomen is
usually yellow, piceous at middle and base, but the entire color may
be black. The legs vary from yellow to black.

I lab. — New York southward to Florida and Texas, westward to
Illinois.

S. caurinus n. sp. — Broadly oval, convex, outline continuous, entirely pi¬
ceous, sometimes with the head and sides of thorax yellow. Head sparsely punc¬
tate. Thorax narrower in front, sides feebly arcuate, very finely sparsely punc¬
tate, basal marginal line not visible. Elytra moderately coarsely, not closely
punctate, the lateral elevated lines short ; metasternum at sides closely, roughly
punctate, the mesocoxal line joining the suture one-third from the front. Ab¬
domen black, with five segments, closely punctate, the metacoxal line very nearly
touching the suture, curving to front and evanescent. Legs red. Length .08 —
.10 inch. ; 2—2.5 mm.

This species varies from entirely piceous to those having the head
and a variable extent of the sides of the thorax reddish yellow.
The entirely black forms resemble tenebrosus, but differ in the form
of the metacoxal arc.

Hab. — Washington, Oregon (Koebele) and Cal. (Owens Valley).

Group D.

The metacoxal line in this series forms a complete arc beginning
at the inner edge of the posterior coxal cavity, sometimes touching
at the apex of the curve the first suture, ending nearly
at the anterior angle of the segment. The prosternal
lines are well marked and entire in all the species, usually
convergent to the front. The mesocoxal arc joins the
met-episternal suture near the front angle. The abdomen has five
segments, but rarely specimens show the sixth.

TRANS. AM. ENT. SOC. XXII.

(13)

MAY, 1895.

GEO. H. HORN, M. I).

!)8

The species of this group nearly equal in number those of all the
preceding groups together, and present the greatest difficulty in their
separation. The greater number of the species had been described
from very limited material, and the characters made use of are now
seen with more specimens and species to have very little value. On
the other hand it has never been found necessary to use the secondary
sexual characters for the first time.

The following table will assist in the separation of the species:

Form broadly oval, outline at humeri continuous . 2.

Form oblong, thorax narrower at base than the base of elytra . 12.

2. — Entirely testaceous above . pollens.

Elytra in great part yellow, with merely an elongate-triangular sutural area

black . ductus.

Elytra black, with discal defined spot . 3

Elytra pale at apex, either merely bordered with yellow, or with an apical

area of that color . ••••... .4

Elytra entirely black . 7.

3. — Elytral spot antemedian, nearly oval, anterior angles of thorax yellow.

pad ficus.

Elytral spot very oblique, thorax black . si minis.

Elytra! spot post-median, thorax yellow at sides . flcbilis.

4. — Elytral pale apex wide, or even large . 5.

Elytra narrowly pale at apex . 6.

5. — Thorax with median black spot.

Apical spot not larger than a fifth the length of the suture- I'm lorn us.

Apical spot fully a third of superficial area . Itrullci.

Thorax entirely yellow.

Apical area large . semi ruber.

6. — Thorax partly black.

First ventral of male with a median smooth area surrounded by short

pubescence . punciicollis.

First ventral of male without pubescence . collaris.

Thorax entirely yellow . . cervical is.

7. — Species larger .08 — .10 inch . 8.

Species small .00 inch . 11.

8. — Metacoxal arc much shorter than first segment . . abbreviaf us,

Metacoxal arc nearly as long as the segment . 9

9. — First ventral of male with a tubercle at middle of posterior edge, finely

pu bescen t . marginieull is.

First ventral male not tuberculate . 10

10. — Last segment of male feebly impresso-emargiuate.

Sides of thorax more or less yellow . arilclio.

Thorax entirely black . f cnchrosus.

Last segment of males deeply impresso-emarginate . lacustds

11. — Metacoxal arc scarcely as long as half the segment . punctual.

Metacoxal arc nearly as long as the segment.

Thorax distinctly punctate; pubescence recumbent . nan us.

Thorax smooth; pubescence erect . utilis.

NORTH AMERICAN CO LEO PT ERA.

99

12.- — Elytra relatively coarsely punctured, black with a spot of variable size nearly
central on each elytron, rarely absent . pinictuf 11*.

Elytra very indistinctly punctate, almost entirely reddish yellow, base and
suture alone dark . I’oniferariun.

S. pillions Lee. — Rather broadly oval, margin slightly interrupted, convex,
rufo-testaCeous above, beneath black, except the last three segments of abdomen,
legs pale. Head very sparsely punctate. Thorax narrower in front, sides ar¬
cuate, surface finely evenly punctate, basal marginal line distinct. Elytra mod¬
erately, finely and not deeply punctate ; prosternum punctate, the elevated lines
short, posterior; metasternum at sides coarsely, closely punctate, mesocoxal line
arcuate, joining the suture near the front. Abdomen coarsely and closely punc¬
tate, the metacoxal line forming a complete arc very nearly as long as the first
segment. Length .06 — .08 inch. ; 1.5 — 2 mm.

The abdomen has five segments only. This species resembles
Phelpsii, which, however, has an incomplete metacoxal arc. The
first ,two ventral segments and the middle of the third are black,
the rest of the abdomen yellow.

Hub. — California, San Francisco, Alameda, Los Angeles, Yuma.
American Fork Canon, Utah, Final Mountains, Ariz.

S. cinctus Lee. — Broadly oval, convex, outline continuous, beneath piceous,
above in great part reddish yellow, the thorax with a basal piceous spot, which
continues on the elytra gradually narrowing, reaching more than three-fourths
the length of the suture. Head not densely punctate. Thorax narrower in front,
sides feebly arcuate, basal marginal line distinct, surface finely and equally punc¬
tate. Elytra much more coarsely and deeply punctured than the thorax; pro¬
sternum punctate, the elevated lines convergent to the front ; metasternum at
sides coarsely and closely punctate, the mesocoxal line arcuate, joining the suture
near the front. Abdomen closely punctate, the metacoxal line entire not quite
reaching the margin of the segment, the outer end reaching the anterior angle
of the segment ; femora piceous, tibiae and tarsi paler. Length .08 inch, slightly
more or less ; 2 mm. PI. II, fig. 5.

Under the above name mturalis || Lee. ( LeContei Cr.) is included.
These two species were described from uniques, and the slight differ¬
ences indicated vanish in a small series. As a rule, however, the
California specimens are somewhat more densely punctured, hut not
less coarsely as stated by LeConte.

In nearly all the specimens examined there is a short, narrow,
piceous space at the side margin of the elytra slightly behind the
middle. Thirteen specimens examined.

The species is very close to Loeivii and fioralis, and the differences
noted by LeConte are as to the first of the most evanescent character,
and as to the second refer rather to a variety mentioned by Mulsant.

Hub. — New Orleans, Texas, westward to California, Yuma to
Los Angeles.

TKANS. AM. EXT. SOC. XXII.

MAY, 1895.

100

GEO. H. HORN, M. D.

8. pacificus Cr. — Oval, outline nearly continuous, black shining, each ely¬
tron with a large reddish yellow oval spot slightly in front of middle, anterior
angle of thorax yellow. Head sparsely punctate, color either yellow or piceous.
Thorax slightly narrowed in front, sides feebly arcuate, sparsely finely punctate,
basal marginal line distinct. Elytra moderately coarsely, not closely punctate ;
prosternum smooth at middle, the elevated lines parallel and entire ; metasternum
roughly punctured at the sides, the mesocoxal line arcuate, joining the suture
one-third from the front. Abdomen moderately, coarsely and closely punctate,
the metacoxal line forming a complete arc as long as the first segment; femora
piceous, knees, tibiae and tarsi rufo-testaceous. Length .08 — .10 inch. ; 2 — 2.5 mm.
PI. II, fig. 7.

There does not appear to be any variation in the coloration of the
specimens examined, except as to the head, which may be either
yellow or black, independently of sex. The color of the anterior
angles of the thorax is not sexual, as Crotch’s description would
seem to indicate.

Hub. — California, Calaveras to Los Angeles.

S. st calms n. sp. — Oval, convex, outline continuous, black, shining, each
elytron with an oblique red spot, nearly all of which is in front of middle. Head
sparsely punctate. Thorax slightly narrower in front, sides feebly arcuate, basal
marginal line distinct, surface finely not closely punctate. Elytra sparsely, in¬
distinctly punctate ; prosternal elevated lines not reaching the anterior margin
of sternum ; metasternum at sides coarsely, closely punctured, the mesocoxal line
arched, joining the suture one-third from apex. Abdomen closely punctate, the
metacoxal line forming a complete arc, as long as the segment, the enclosed space
smooth. Legs piceous, tibiae and tarsi somewhat paler. Length .10 inch. ; 2.5
mm. PI. 1 1, fig. 6.

Of this species but one female specimen has been examined. It
resembles pacificus, but is more convex and broader, the red spot is
oblique, the thorax entirely black.

Hub. — New Mexico.

fc. flehilis n. sp. — Regularly oval, black, head and sides of thorax broadly
reddish yellow, each elytron with a reddish yellow triangular spot near the apex.
Head sparsely punctate. Thorax narrowed in front, sides feebly arcuate, sides
broadly reddish yellow, this extending narrowly along the apex, surface very
sparsely punctate, the basal marginal line indistinct. Elytra moderately coarsely,
not closely punctate; prosternal lines parallel and entire; metasternum coarsely
punctate at sides, the mesocoxal line arcuate, joining the suture one-fourth from
the front. Abdomen black, closely punctate, the metacoxal line forming a com¬
plete arc a little shorter than the segment. Legs piceous. Length .08 inch. ; 2 mm.

The elytra are paler along the apical border, but without forming
the red edge characteristic of the forms allied to collaris. To this
latter species it has considerable resemblance apart from the moder¬
ately large reddish spot near the apex of the elytra, which may be
called triangular with rounded angles.

Hub. — Arizona, Gila Bend (Wickham).

NORTH AMERICAN COLEOPTERA.

101

S. Irate m us Lee. — Broadly oval. Head yellowish, sparsely punctate.
Thorax narrowed in front, sides moderately arcuate, surface sparsely, obsoletely
punctate, color yellow, with a piceous median area of variable extent. Elytra
black, not very closely nor densely punctate, the apex with a yellowish area,
which never extends along the suture more than a fifth of its length, but along
the apex and sides nearly a third of the curve ; prosternal lines distinct, conver¬
gent in front ; metasternum coarsely punctate the mesocoxal line arcuate, joining
the suture near the front. Abdomen piceous, gradually paler at sides and apex,
metacoxal arc entire not quite as long as the segment. Legs reddish yellow.
Length .08 inch. : 2 mm. Pl. II, fig. 3.

The only variation observed is that of color. The piceous area of
the thorax may be greater or less, but the yellow lateral border is
always wide. The apical pale area of the elytra does not vary to
any extent. The abdomen may have the sides and apex vaguely
paler, or the paler area may be well defined.

As a synonym of this species hcemorrhous Lee. is placed. A re¬
cent examination of the types of both shov/s that they were estab¬
lished on uniques, the differences being merely individual, fraternm
having the greater extent of yellow on the thorax. Specimens sup¬
posed to be the males of this species are less broadly oval, and the
yellow at apex of greater extent.

S. creperm Muls. seems to differ only in having the last three ven¬
tral segments very yellow, except a median piceous spot on the third
segment. Mulsant records a variety of this which he calls ashitus.
While I am not yet fully prepared to place all the above in syn¬
onymy, it needs but a few intermediate forms to do so. In that case
the name creperm must stand. By some accident the latter escaped
notice by LeConte.

Hab. — Canada, Middle States, Illinois, Louisiana, Texas.

S. It ru I l(’i Muls. — Oval, black, shies of thorax and a large apical elytra!
space reddish yellow. Head sparsely punctate, color piceous or yellow. Thorax
narrowed in front, sides arcuate, surface sparsely, indistinctly punctate, color
variable from being entirely black to having the sides broadly and apex narrowly
yellow. Elytra moderately closely and distinctly punctate, black, the apical
yellow space occupying a third or even more of the Superficial area ; prosternal
lines distinct, convergent to the front; metasternum closely punctate at the sides,
mesocoxal arc joining the suture near the front. Abdomen usually entirely pi¬
ceous, closely punctate, metacoxal arc entire fully three-fourths the length of the
segment. Legs testaceous or slightly rufous, the femora darker. Length .08 —
.10 inch.; 2 — 2.5 mm. PI. II, fig. 8.

The description applies to many specimens seen from Florida,
Texas and Wyoming. I have two others which differ (Missouri and
New York) in having the sides and apex of the abdomen broadly

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

102

GEO. H. HORN, M. I).

yellow. The variation in color of the thorax has been indicated,
that at the apex of elytra is variable in extent, rarely smaller than
shown in the figure, but sometimes much larger.

A specimen in my cabinet from Texas has the elytra much more
coarsely punctate than usual, the thoracic piceous area small, the
sides and apex of abdomen yellow. This may indicate a distinct
species, but with a unique and the recognized variation observed in
other species it does not seem safe to separate it under a distinct
name.

Hub. — Florida, Texas, Wyoming, Kansas and perhaps New York
and Missouri.

S. semiruber n. sp. — Oval, outline regular, convex, head and thorax red¬
dish yellow, elytra piceous, the apical third or nearly half reddish yellow, beneath
piceous, abdomen almost entirely and legs yellow. Head moderately punctate.
Thorax narrower in front, sides feebly arcuate, basal marginal line distinct, sur¬
face sparsely, indistinctly punctate. Elytra moderately coarsely, closely, not
densely punctate; prosternum, in great part yellow, the elevated lines entire and
convergent; metasternum at sides coarsely and closely punctate, the mesocoxal
line joining the suture one-third from the front. Abdomen closely punctate, the
metacoxal arc entire, not quite reaching the first suture, the enclosed area smooth.
Length .08 inch, nearly; 2 mm.

This species resembles collar in, but differs in the much greater ex¬
tent of the red elytral apex and by the almost entirely reddish yel¬
low abdomen. The extent of the red elytral apex is as great, or even
greater than observed in Brullei ( fuemorrhous Lee.).

IJnb. — Florida, Texas.

S. |Mi net i eoi I i s Lee. — Oval, black, rather dull, sides of thorax indefinitely
yellow, apex of elytra narrowly reddish. Head piceous, mouth paler, surface
finely punctate. Thorax narrowed in front, sides feebly arcuate, basal marginal
line distinct, surface evidently punctate, more closely toward the sides. Elytra
more coarsely punctured than the thorax and moderately closely; prothorax be¬
neath piceous, prosternal lines entire and nearly parallel; metathorax at sides
coarsely not densely punctate, mesocoxal line joining the lateral suture near the
front. Abdomen closely punctate, the metacoxal arc entire very nearly as long
as the segment ; tibia* and tarsi pale, femora more or lcs's piceous. Length .08 —
.10 inch.; 2 — 2.5 nun.

The fifth ventral is broadly and deeply emarginate. The first
ventral has a smooth median area limited each side by a narrow
space of tine, short pubescence.

The last two or three segments are usually paler, sometimes also
this color extends indistinctly on the sides of the other segments.

This species is allied by general characters to collaris. The head
has never been observed to be yellow, nor are the sides of the thorax

NORTH AMERICAN COEEOPTERA.

103

as broadly so. Tlie legs, when mature, differ in color in the two
species, but immaturity in the present species would render this an
indefinite character. The character shown by the first ventral seg¬
ment of the male is a positive means of separation.

Hab. — Canada, New York and New Jersey (Da Costa, Wenzel),
Upper Mississippi (LeConte).

S. collaris Mels. — Regularly oval, piceous, moderately shining, head and
thorax reddish yellow, the latter with a piceous medio-hasal area of variable ex¬
tent, apex of elytra narrowly pale. Head sparsely finely punctate. Thorax
narrower in front, sides feebly arcuate, surface sparsely punctate, more distinctly
at middle than at sides, basal marginal line feebly distinct. Elytra punctate, the
punctures not coarse nor close ; prothorax beneath yellow, the prosternal lines
entire, convergent in front; metasternum at sides coarsely and closely punctate,
the mesocoxal line joining the lateral suture one-fourth from the front. Abdomen
closely punctate, piceous, the last three segments usually yellowish, metacoxal
line forming a complete arc, very nearly as long as the segment. Legs entirely
reddish yellow. Length .08 — .09 inch. ; 2 — 2.25 mm. PI. II, fig. 1.

The male has the fifth ventral broadly and deeply emarginate, the
first ventral at middle finely and closely punctate, without pubescence.

The color of the thorax varies; the piceous area may be merely a
small space in front of the scutellum, or it may occupy a full third
of the surface. The abdomen may vary in color, so that even the
sides of the first two segments may be pale. The legs seem uniformly
reddish yellow.

Under the name coflaris are included several described by Mulsant
and LeConte, evidently from inadequate material ; these are chatchas
and fadigiatus Muls. and caudalis, eomobrinus and soeer Lee.

Closely allied also is puncticollb* Lee., which may be separated
empirically by the color of the legs, and certainly by the male char¬
acters.

Hab. — Canada', southward to Florida and Texas, westward to
Illinois and Nebraska.

S. cervical is Muls. — Oval, outline continuous, convex, head, thorax and
legs reddish testaceous, elytra piceous, at apex narrowly bordered with reddish
yellow. Head sparsely punctate. Thorax narrower in front, sides arcuate, surface
very sparsely punctate, basal marginal line distinct. Elytra moderately coarsely,
but not closely punctate: prosternum more or less yellow, the elevated lines
slightly convergent to the front; metasternum at sides moderately closely punc¬
tured, the mesocoxal line joining the suture one-third from apex. Abdomen
black, the terminal segments pale, metacoxal line forming a complete arc shorter
than the segment. Length .06— .09 inch. ; 1.5 — 2.25 mm.

The prosternal lines vary in length, being at times short not pass¬
ing the coxte, or they may attain the front of the prosternum. The

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

104

GEO. H. HORN, M. D.

abdomen may be narrowly pale at apex, or the greater part of the
last three segments pale. The apical pale border of the elytra is at
times indistinct, in its best development it never exceeds an eighth
of the length of the suture.

From an examination of the type of socer it seems to be an acci¬
dental cervicalis, with the middle third of the base of the thorax
piceous.

Hab. — Canada, New Jersey, North Carolina, Georgia, Missouri.

S. abbreviatus Lee. —Oval, very little longer than broad, entirely black,
legs red. Head moderately, coarsely and closely punctate. Thorax narrower in
front, sides very little arcuate, basal marginal line distinct, but tine ; surface
sparsely punctate at middle, much more closely at the sides. Elytra coarsely and
moderately closely punctate ; prosternal elevated lines distinct, slightly convergent
in front; metasternum closely punctate at sides, the mesocoxal arc joining the
suture one-fourth from the front angle. Abdomen more finely, hut densely punc¬
tate, metacoxal arc entire very little longer than half the first segment. Length
.08 inch. ; 2 mm.

This species resembles tenebrosus, but the upper surface is more
coarsely and closely punctate. They differ more especially in the
extent of the metacoxal arc, which here is short, but in tenebrosus
nearly as long as the segment.

Hab. — Lake Superior region. Two females in the LeConte cabinet.

S. marginicollis Mann. — Broadly oval, outline continuous, black, head
often (especially in male) and sides of thorax reddish yellow. Head finely,
sparsely punctate. Thorax slightly narrowed in front, sides feebly arcuate, sur¬
face punctate, more closely at sides, basal marginal line distinct. Elytra moder¬
ately closely punctate ; prosternal carinse convergent and entire ; metasternum
coarsely and closely punctate, the mesocoxal line arcuate, joining the suture near
the front angle. Abdomen closely coarsely punctate, the metacoxal arc entire
very nearly as long as the first segment. Legs nearly black, the anterior some¬
times more or less rufous. Length .06 — .08 inch. ; 1.5 — 2 mm.

The male has the fifth ventral feebly emarginate as usual in the
genus. At the middle of the posterior margin of the first ventral
segment is a small tubercle with very small hairs.

This species varies in the coloration of the head and thorax. The
head may be either red or black, in the former case nearly all are
males, although some females are similarly colored. The thorax is
usually yellow at the sides in a variable extent, sometimes the me¬
dian dark space is reduced to a narrow strip along the middle of the
base. Others again have the entire thorax black. These are not
readily separable from laemtris by description, except in the male.

NORTH AMERICAN COLEOPTERA.

105

Under the name marginicollis there have hitherto been placed all
the California Scymnus with black elytra and pale thoracic sides.
My attention was first called to the peculiar structure of the first
ventral segment of the male by Mr. H. C. Fall, of Pomona, Cal.,
and it is plainly evident that two species at least have been con¬
founded. I know of no means of separating the females excepting
that in the present species the legs are nearly always black, while in
the other they are either red or the tibiae and tarsi are pale.

I have chosen the name marginicollis for the above form rather
arbitrarily from the fact that it is inferrible from the descriptions
that the legs are almost entirely black.

Hub. California, extending from a little north of San Francisco
to Santa Barbara, Los Angeles ; Catalina Isd., San Diego and
Pomona.

S. urriclio n. sp.

This name is given to those forms heretofore mixed with man/ in i-
collis, and to which the detailed description of that will fully apply,
except as to the following details:

The legs may be reddish yellow, or the tibiae and tarsi alone of
that color; sometimes the legs are entirelv piceo-rufous.

The male has the fifth segment feebly emarginate, the first seg¬
ment at middle not tuberculate, but with an oval polished space at
the suture sharply limited by the close punctures around it.

The variations are as in marginicollis , but specimens entirely black
are more numerous, and that, too, among those with the palest legs.

It is possible that there remain two species in the above aggregate,
but I am unable to separate them, but those forms with the entirely
rufo-testaceous legs are to be considered the typical forms.

There is still greater difficulty in separating the species from la-
custris and tenebrosus than in the case of marginicollis. In the
latter the male has the small tubercle of the first ventral segment.
In the present species the first ventral does not greatly differ from
the other two mentioned. In both these, however, the last segment
of the male is much more deeply emarginate, especially in lacustris.

Hub. — British Columbia southward through Washington, Oregon
and California, eastward to Utah. Specimens have been seen from
Arizona, El Paso, Tex., and Calmalli Mines, Penins. Cal.

S. lacustris Lee. — Broadly oval, convex, black. Head sparsely punctate.
Thorax narrowed in front, sides feebly arcuate, surface sparsely feebly punctate.
Elytra moderately, coarsely, but not closely punctate ; prosternal carinse distinct

(14)

TRANS. AM. ENT. SOC. XXII.

MAY, 1895.

106

GEO. H. HORN, M. D.

convergent in front : metasternum at sides very coarsely punctate, the mesocoxal
line joining the lateral suture one-third from the front. Abdomen black, evenly
and more finely punctate than the metasternum; metacoxal arc entire, the en¬
closed area nearly as long as the segment ; femora entirely or in great part pice-
ous. tibia? and tarsi paler. Length .08— .10 inch. ; 2 — 2.5 mm.

Iii the male the last ventral segment is very deeply impresso-
emarginate. The legs may be entirely piceous.

Hub. — North shore of Lake Superior (Lee.) ; westward Utah,
Park City, New, Washington, California.

s. tenebrosus Muls. — Broadly oval, entirely black, legs red or reddish
brown. Head sparsely punctate. Thorax narrower iu front, sides feebly arcuate,
surface equally sparsely punctate. Elytra slightly more closely and coarsely
punctured than the thorax. Body beneath entirely black : prosternal elevated
lines entire, slightly convergent ; metastemum at sides coarsely and closely punc¬
tate, the mesocoxal arc joining the lateral suture very near the front angle.
Abdomen more closely, but less coarsely punctured than the metasternum, meta¬
coxal arc entire, nearly as long as the first segment. Length .08 — .10 inch. ; 2 —
2.5 mm.

In the male the last ventral is feebly impresso-emarginate. The
legs vary in color from very pale red to brown, but are uniform.
In the original description LeConte states that the head of the male
is pale. This is only partly true ; the color of the head is by no
means indicative of sex.

Huh. — Massachusetts to North Carolina, Southern States (Lee.).

Jij. iumctum Lee. — Broadly oval, black, shining, outline nearly continuous,
legs testaceous, the femora more or less piceous or even black. Head indistinctly
punctate. Thorax narrowed in front, sides feebly arcuate, surface sparsely punc¬
tate at middle, more densely and coarsely at the sides, the basal marginal line
distinct. Elytra sparsely punctate, the punctures finer than those of the sides of
the thorax; prosternum slightly convex and punctate, without elevated lines;
metasternum at sides coarsely punctate, the mesocoxal line arcuate, joining the
suture one-fourth from the front. Abdomen rather densely punctate, metacoxal
line forming a complete arc scarcely longer than half the til’s t segment. Length
.05 — .0(1 inch. ; 1.25 — 1.50 mm.

Iii the male the fifth ventral segment is slightly emarginate, the
female has six very distinct segments. The suture between the first
two ventral segments is totally obliterated at middle.

The color of the legs varies ; the tibiae and tarsi are testaceous and
the femora piceous, but the femora may be almost entirely pale,
except at base, or may be entirely black.

Hub. — The species seems very widely distributed, specimens are
known to me from Canada, the Middle States, Missouri, New Mexico,
British Columbia, and California from Siskiyou to Los Angeles.

NORTH AMERICAN COLEOPTERA.

107

S. nanus Lee. — Broadly oval, outline continuous, black, shining, anterior
angles of thorax often rufescent, legs reddish. Head evidently punctate. Thorax
narrower in front, sides arcuate, surface sparsely punctate, equally at middle and
sides, basal marginal line distinct. Elytra not closely punctate, hut much more
coarsely than the thorax ; prosternum slightly convex, punctate, without elevated
lines; metasternum at sides closely punctate, the mesocoxal line joining the su¬
ture one-fourth from apex. Abdomen closely punctate, the metacoxal line form¬
ing a complete arc nearly as long as the first segment. Length .05 — .06 inch.;
1.25 — 1.50 mm.

As in punctum the male has the fifth ventral feebly impressed at
tip, the female has six distinct segments, the suture between the first
two ventrals is not so completely obliterated as in that species.

The thorax may have the apical angles reddish, but never very
conspicuously so, but the thorax may be entirely black. This spe¬
cies resembles punctum closely, and the only reliable character for
their separation is in the form of the metacoxal line, here the arc is
very nearly as long as the first segment, in that but little more than
half. The punctuation of the sides of the thorax — coarse in punctum,
very fine and sparse in nanus, is a fairly good character, but variable
to an extent leading to doubt.

Hub. — Specimens have been seen from Michigan, Middle States,
Florida, New Mexico, Arizona and California.

S. ill ilis n. sp. — Broadly oval, convex, piceous black, shining, mouth parts,
an ten me and legs yellow, pubescence sparse, erect. Head indistinctly punctate.
Thorax much narrower in front, sides feebly arcuate, basal marginal line distinct,
surface almost smooth, a few fine, indistinct punctures. Elytra relatively coarsely,
sparsely, but not deeply punctate, each puncture with a nearly erect grayish hair ;
prosternum flat, without elevated lines; metasternum smooth, slightly punctate
at sides, mesocoxal arc short, joining the suture near the front angle. Abdomen
with six distinct segments, sparsely punctate, the metacoxal arc entire, nearly as
long as the segment. Length .03 — .04 inch. ; 1 mm. and less.

This species resembles some of the smaller forms of nanus and
punctum, but may be known from these as well as any others in our
fauna by the nearly erect, sparse hairs of the surface.

Hub. — Florida, Tampa, Bar|tow, Crescent City and Haulover
(coll. Hubbard and Schwarz). A specimen in bad condition in my
collection from Albuquerque, N. Mex., probably belongs here. This
Scynmus is predatory on Aleyrodes citri.

S. punctatus Mels. — Oblong oval, more than half longer than wide, black,
shining, each elytron with a small, oval, red spot near the centre. Head sparsely
punctate. Thorax slightly narrower than the elytra, narrowed in front, sides
nearly straight, arcuate near front angles, disc distinctly punctate, the punctures
evenly disposed, basal marginal line distinct. Elytra a little wider at base than

TRANS. AM. ENT. SOC. XXII.

MAY, 1895.

108

GEO. H. HORN, M. D.

the thorax, coarsely and moderately deeply, but not closely punctate ; prosternum
without elevated lines; metasternum sparsely punctate at the sides, the meso-
coxal line feebly curved, joining the suture one-third from the front. Abdomen
sparsely punctate, the metacoxal line forming a complete arc very little broader
than long and nearly as long as the segment. Legs black or piceous. Length
.0(1 inch.; 1.5 mm. PI. II. tig. 2.

In the male the last ventral is feebly emarginate at tip. This
species varies a little in the size of the red elytral spot. In one
specimen before me from Texas the spot extends obliquely to the
suture. The absence of the prosternal elevated lines seems to relate
this species to the forms with the incomplete metacoxal arc.

I have in my cabinet one specimen in which the elytra are entirely
black without spot. Its other characters are those of punctata s. I
feel unwilling to separate it as a distinct species, inasmuch as the
Canadian specimens show quite a variation in the size of the elytral
spot. The specimen is from Eagle Harbor, Lake Superior.

Hab. — Canada, Pennsylvania and Texas.

S. con i feraru in Crotch. — Oblong oval, fully one-half longer than wide,
black, anterior angles of thorax pale, elytra reddish, black along the base and
two-thirds of the suture and sides. Head sparsely punctate. Thorax slightly
narrowed in front, sides very feebly arcuate, surface sparsely indistinctly punc¬
tate-. Elytra a little wider at the base than the thorax, sparsely punctate ; pro-
sternal elevated lines well marked, parallel and entire ; metasternum sparsely
punctate at sides, the mesocoxal line feebly arched joining the suture one-fourth
from the front. Abdomen sparsely punctate, metacoxal line forming a complete
arc, two-thirds the length of the segment. Legs black. Length .0(1 — .08 inch. ;
1.5 — 2 mm.

The only variation observed is in the extent of the red coloration
of the elytra. Sometimes they are entirely red, or the base and two-
thirds of suture and side margin piceous, or the piceous may extend
to the apex along the suture and side thus enclosing a large oval
distal spot. A specimen from Veta Pass, Col. (Schwarz), has the
thorax entirely black and the legs reddish. This may be a distinct
species, but the material at hand is not sufficient to establish it.

Hab. — California from Tahoe and Alameda south to San Bernar¬
dino, Nevada, Colorado, Veta Pass.

Synonymy and Bibliography.

SCYMNUS Kug.

S. balteatus Lee., Proc. Am. Philos. Soc. 1878, p. 399.

S. bigemmeus n. sp.

S. Liebecki n. sp.

S. myrmidon Mills., Spec. Sec. p. 954.

NORTH AMERICAN COLEOPTERA.

109

S. quadriteeniatus Lee., loc. cit. p. 400.

S. xanthaspis Muls., loc. cit. p. 952.

S. terminatus Say, Bost. Jour, i, p. 203; edit. Lee. ii, p. 071 ; Muls., loc. cit. p.

952: Lee., Proe. Acad. 1852, p. 136.

S. femoralis Lee., loc. cit. p. 136.

S. debilis Lee., loc. cit. p. 137.

S. intrusus n. sp.

S. bivulnerus n. sp.

S. bisignatus n. sp.

S. flavifrons Mels., Proc. Acad. 1847, p. 181; Lee., loc. cit. p. 136; bioculatus
Muls., loc. cit. p. 960; Lee., loc. cit. p. 136; guttiger et marginellus vars.
Muls., loc. cit. p. 965.

S. sordidus n. sp.

S. ornatus Lee., loc. cit. p. 135.

S. coloradensis n. sp.

S. amabilis Lee., loc. cit. p. 135.

S. guttulatus Lee., loc. cit. p. 136.

S. nebulosus Lee., loc. cit. p. 137.

S. Phelpsii Crotch, Trans. Am. Eut. Soc. 1874, p. 77.

S. circumspectus u. sp.

S. opaculus n. sp.

S. americanus Muls., loc. cit. p. 965; Lee., loc. cit. p. 137.

S. caurinus u. sp.

S. pallens Lee., loc. cit. p. 137.

S. cinctus Lee., loc. cit. p. 137; suturalis || Lee., loc. cit. p. 138; LeContei Crotch,
Revision, p. 264.

S. paciflcus Crotch, Trans. Am. Ent. Soc. 1874, p. 77.

S. strabus n. sp.

S. flebilis n. sp.

S. fraternus Lee., loc. cit. p. 138; ? creperus Muls., loc. cit. p. 985; astutus Muls.,
loc. cit. p. 986 ; hsemorrhous Lee., loc. cit. p. 138.

S. Brullei Muls., loc. cit. p. 984.

S. semiruber n. sp.

S. puncticollis Lee., loc. cit. p. 139.

S. collaris Mels., Proc. Acad. 1847, p. 180; chatchas Muls.,- loc. cit. p. 986; fastigi-
atus Muls., loc. cit.; caudalis Lee., consobrinus Lee., loc. cit. p. 139.

S. cervicalis Muls., loc. cit. p. 984; Lee., loc. cit. p. 139; var. ? soeer Lee., 1. c.

S. abbreviatus Lee., loc. cit. p. 140.

S. marg-inicollis Mann., Bull. Mosc. 1843, p. 313; Muls., loc. cit. p. 1053; Lee.,
loc. cit. p. 140.

S. ardelio n. sp.

S. lacustris Lee., loc. cit. p. 140.

S. tenebrosus Muls., loc. cit. p. 989 ; Lee., loc. cit. p. 140.

S. punctum Lee., loc, cit. p. 141.

S. nanus Lee., loc. cit. p. 140.

S. utilis n. sp.

S. punctatus Mels., Proc., Acad. 1847, p. 180.

S. coniferarum Crotch, Trans. Am. Ent. Soc. 1874, p. 77.

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

110

GEO. H. HORN, M. I).

Not Identified.

S. icteratus Mills., loc. cit. p. 909.

S. cyanescens Mills., loc. cit. p. 993.

S. atramentarius Boh., Bug. Resa Ins. p. 207.
S. californicus Boh., loc. cit.

S. infuscatus Boh., loc. cit. ]>. 208.

ERRATUM — Page 85, line 13, for cauriiius read opaculm.

SCYJ1XILUS n. g.

This genus is proposed for a species of the form and habitus of
Seyinnus punctum, with all the essential characters of Scymnus, but
differing in the following particulars:

Body not pubescent, except feebly on the head and thorax. Eyes
feebly emarginate and impressed, the lenses obliterated opposite the
base of the antennse. An ten me very short, formed as in Scymnus ;
prosternum Hat, elevated lines not distinct; mesocoxal line joining
the met-episternal suture at middle. Abdomen composed of five
segments, the first longer at middle than the next three, the suture
between the first and second well marked ; metacoxal line oblique,
extended toward the edge of the segment, which it joins near the
posterior angle.

The impression of the eyes recalls a similar character observed in
Throscu s, in which, however, the impression is better marked. My
attention was first especially directed to this insect by the fact that
there are but five ventral segments, while in the group (B) of Seyin-
n ii*, with which it might be associated, there are six segments. The
metacoxal line is also more oblique than in that group, and reaches
the side of the segment without running parallel with the first suture.

s. iiterrimiiN n. sp. — Broadly oval and convex, margin slightly interrupted,
black, shining, elytra usually without trace of pubescence. Head coarsely sparsely
punctate. Thorax slightly narrowed in front, sides feebly arcuate, surface coarsely
not closely punctate, basal marginal line indistinct ; prosternmu Hat. coarsely
punctured, without elevated lines; metasternuni coarsely sparsely punctured and
alutaceous. the mesocoxal line joining the suture near its middle. Abdomen
sparsely punctate, metacoxal line feebly curved, not touching the first suture nor
parallel with it. Length .04 — .00 inch.; 1 — 1.5 mm.

The abdomen has but five segments; the pubescence of the head
and thorax is sparse, but distinct; but in neither of the four speci-
mens seen has there been any trace of pubescence observed on the
elytra.

Hub. — Northern California and Oregon (Koebele, 40).

NORTH AMERICAN COLEOPTERA.

Ill

CEFHALOSCY1H M S Crotch.

This genus differs from Scyvmv* in having the anterior coxal cavi¬
ties open behind. The thorax is narrower at base than the elytra
and much more deeply emarginate at apex than in Scymnus. The
head is more deeply inserted, the front vertical, the eyes narrowly
oval, rather finely granulate, and in two species with a very feeble
impression at the antennal insertion. The antenme are very short
and seem to be but 10-jointed. The abdomen has five segments, the
sutures distinct ; tarsal claws slightly broadened at base.

Crotch gives eleven joints to the antennae, but T have not been
able to see more than ten, in which respect Mr. II. C. Fall, of Cali¬
fornia, adds confirmation from an examination of a species taken by
him.

The species at present known are as follows:

Elytra not ornate.

Body above black ; elytra moderately coarsely, not densely punctate; eyes with
slight impression . Zinimerinaiini.

Body above brownish ; elytra very coarsely and densely punctured ; eyes

scarcely visibly impressed . occirtentalis.

Elytra with two yellow spots often suffused.

Elytra not coarsely punctate; eyes distinctly notched . ornatns.

(’. Zimmerinanni Or. — Broadly oval, slightly convex, black, slightly
bronzed, pubescence gray and irregular. Head moderately coarsely and not
closely punctate. Eyes feebly impressed, not twice as long as wide; labrum con¬
spicuously yellow. Thorax fully three times as wide at base as long at middle,
coarsely and closely punctured, densely at the sides, no basal marginal line.
Elytra broader at base than the thorax, about one-fourth longer than wide, sur¬
face more coarsely punctate than the thorax, but less closely ; prosternum short
and broad, nearly smooth without elevated lines; metasternum smooth at middle,
punctate at sides; mesocoxal arc joining the suture one-fourth from the front.
Abdomen scarcely punctate, metacoxal arc entire, half the length of the segment.
Legs piceous, tibiae and tarsi paler. Length .06 — .08 inch. ; 1.5 — 2 mm. PI. IT,
fig. 10.

Crotch describes this species as dark green, which is the result of
slight immaturity with the mixture of slight bronze of the surface
and the pale hairs.

The type was collected in South Carolina, others are known to me
from District of Columbia and Maryland.

€'. oeeidentalis n. sp. — Oval, slightly oblong, feebly convex, paler piceous
with grayish pubescence. Head moderately closely punctate. Thorax three
times as wide as long at middle, sides feebly arcuate, surface closely punctate,
densely and rather roughly at the sides. Elytra wider at base than the thorax,
surface coarsely and closely punctate, roughly near the umbone; prosternum

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

GEO. H. HORN, M. D.

nearly square, without elevated lines; metasternum at sides obsoletely coarsely
punctate, the mesocoxal line indistinct. Abdomen sparsely punctate, the meta-
coxal arc entire, but short aud indistinct. Legs paler than upper surface. Length
.07 inch. ; 1.75 mm.

In this species the eyes are much narrower than in the other spe¬
cies and the impression at the lower end so feeble that it might readily
escape notice.

Hab. — Southern California, Los Angeles and southward.

C. ornatus u. sp.- — Broadly oval, moderately convex, piceous, pubescence
gray, directed irregularly, each elytron with two irregularly oval yellow spots
not sharply defined, sometimes large, suffused and united. Head moderately
coarsely and closely punctate. Eyes with well defined impression at lower angle.
Thorax nearly three times as wide as long at middle, slightly narrower in front,
sides feebly arcuate, surface moderately punctate. Elytra not closely nor deeply
punctate; prosternum broader than long, flat, without elevated lines; metaster¬
num punctate at the sides, the mesocoxal line joining the suture one-third from
the apex. Abdomen sparsely punctate, metacoxal arc entire not half as long as
the segment. Legs piceo-testaceous. Length .06 — .08 inch. ; 1.5 — 2 mm.

No sexual differences have been seen in the six specimens exam¬
ined. No great variation has been observed, excepting that the
spots on the elytra extend and become more or less suffused. The
abdomen is piceous, sometimes with the entire border paler.

This species resembles somewhat Sc. guttulatus , and apparently has
been mixed with it in collections.

Hub. — California, Siskiyou to Alameda, also Catalina Island.

RHIZOBIUS Steph.

This genus differs from Scymnus in the antennae reaching to the
hind angles of the thorax. The vestiture consists of the usual pu¬
bescence of Scymnus with numerous short, erect hairs irregularly
placed on the elytra.

R. lophanthce Blaisd. ( Scymnus ), Ent. News, March, 1892, p. 51 ;
toowoombce Blackb., Trans. Royal Soc. South Aust. xv, December,
1892, p. 254.

Form of Sc. co/laris. — Head and thorax reddish yellow, the latter
with a central cloud variable in distinctness. Elytra piceous, with
feeble aeneous lustre ; underside and legs reddish yellow.

It is unfortunate that an intentionally introduced insect should
have been first named in the country of its expatriation.

Introduced from Australia, Brisbane.

R. debilis Blackb. — This species in color and form resembles Sc.
pattern or Rhclpsii. It has attained but little foothold.

Introduced with the preceding.

NORTH AMERICAN COLEOPTERA.

113

JJOVIUS Muls.

Two species of this genus have been introduced into California
for their utility in the destruction of Icerya purchasi, which threat¬
ened to destroy, or very greatly injure the orange and lemon trees
of that State.

X. cardinal!* Muls.

This insect was originally described as Vedalia, but recent re¬
searches place it in Nainas. Chapuis places these two genera in
separate groups, and as these two groups, Ortaliites and Scynmites,
are separated especially by the thorax narrower at base than the
elytra in the former it would seem preferable to remove Novius from
the Scynmites and place it nearer to Rodolia and Vedalia.

X. cardinalis Muls. — A species as large as Exochomus marginipennis, hut
more depressed. Its elytral markings are strikingly similar to some of the va¬
rieties of that species. The elytra are red, the suture narrowly black, with two
slight enlargements, the apex is black, extending one-third or more to humerus
and at its end expanded, a spot partly surrounding the urnbone and an oval spot
one-third from apex. The legs are black, often with the tibiae and tarsi carmine-
red. PI. II, fig. 9.

This insect is now thoroughly acclimated in the citrus growing
regions of California, and very full accounts of it have appeared in
many publications in that State and in “ Insect Life,” Washington.

Introduced from New Zealand.

X. Koebelii Ollitfe.

This is somewhat smaller than cardinalis. The elytra are reddish,
the suture narrowly black, the same color extending around the apex
and sides to middle. Specimens are frequent with the elytra entirely
red. Thorax entirely black, while that of cardinalis is pale at the
sides.

This species does not seem to have gained the footing of cardinalis
although fairly acclimated.

Specimens were given me by Mr. A. Koebele, who v/as instru¬
mental in introducing them from Australia, their native region.

COC'C IIH LA Kug.

This genus is usually placed in a group without other associates,
distinguished from all the pubescent Coccinellidse by the faint at¬
tempt at a stria! arrangement of some larger punctures. It must,
however, be admitted that this character seems to fail almost entirely
and can be seen better by faith than with the lens.

Two species occur in our fauna.

C. lepida Lee., Proc. Acad. 1852, p. 232. The figure (PI. II, tig.
12) gives a fair idea of the form and markings of this species, other¬
wise well described by Dr. LeConte.

TRANS. AM. ENT. SOC. XXII.

(15)

MAY, 1895.

114

GEO. H. HORN, M.D.

Occurs in Canada and t lie New England States as far south as
the latitude of Philadelphia.

C. Occident nl is n. sp. — Oblong, subdepressed, finely pubescent, above in
great part yellowish red, except head and elytral markings piceous, beneath pi-
ceous, except the last three ventral segments and legs, which are yellow. Head
sparsely punctate. Thorax more closely punctate. Elytra much more coarsely
punctate, a few of the larger punctures with faint serial arrangement; color
yellow, sides and base piceous, a sutural stripe joining the base and ending in a
cordiform spot one-third from apex. Length .12 inch. ; 3 mm. PI II, fig. 11.

In comparing this species with lep ida the following differences will
be observed. In the markings of the elytra there is an absolute
constancy in the comparatively large series of both species scarcely
the slightest variation has been observed. In occidental^ s there is a
sutural stripe ending in a cordiform spot ; in lepida there is no sutural
stripe and the spot is isolated and transversely oval. On the under¬
side the first two segments are entirely piceous in oceideatalU, but
yellowish at sides in lepida.

On comparing the forms of the two lepida is narrower; it has also
in many specimens a slight tendency to have the sides of the thorax
angulate. In lepida the elytral punctures are, on the whole, coarser,
and the serial arrangement of some coarser ones better marked.

HaJk.— W yoming to Vancouver.

EXPLANATION OF PLATE I.

ig-

1.—

S cymnus quadritieniatus Lee.

2. —

“ coloradensis Horn.

3 —

“ bigemmeus % Horn

4.—

9

U

5. —

“ balteatm Lee.

u

6.—

■* IAebecld Horn

7. —

“ jlavifrons Mels.

8.—

“ amabilis Lee.

9.—

“ myrmidon Mu Is.

ta¬

“ bivulnerus Horn.

il.—

“ bisiqnatus Horn.

12.—

“ ornatus Lee.

13.—

“ guttulatus Lee.

14.—

“ “ var.

15 —

“ terminates Say.

10. —

“ sordidus Horn.

EXPLANATION OF PLATE

II.

Fig. 1. — ScymnuH coUaris Mels.

2. _ - “

punctatus Mels.

3.— “

froternus Lee.

4.— “

d re inn sped ns Horn

5. — “

cinctus Lee.

6— “

strabus Horn.

7.— “

pacificus Crotch.

8.— “

Brullei Mels.

9. — Novius

cardinalis Muls.

“ 10. — Cephaloscymnus Zimmermanni Crotch.

“ 11.— Coccidula occidentalis Horn.

“ 12.— “ lepida Lee.

Trans. Am. Ent. Soc. Vol. XXII.

PI. I

Trans. Am. Ent. Soc. Vol. XXII.

PI. II.

NORTH AMERICAN HYMENOPTERA.

115

NOTES OX BEES. WITH DESCRIPTIONS OF
NEW SPECIES.— Thi rd Paper.

BY CHARLES ROBERTSON.

With the exception of a few species from Florida, the following
paper is based on the bees occurring in the neighborhood of Carlin-
ville, Ill. It is intended to give descriptions of certain new species,
and of the still undescribed sexes of known species, with notes on
synonymy, etc., as well as to supplement the work of the author in
previous papers by indicating other characters by which the species
may be distinguished from those they nearly resemble. This paper
will be followed by another on the time of flight and the habits of
the local species. The synonymy and arrangement are based on
Cresson’s Catalogue.

Colletes imequalis Say, Bust. Jour, i, 391, 1837; Colletes propinqua Cress.,
Proc. Bost. Soc. Nat. Hist. xii. 165, 1868 — see Patton, ibid, xx, 142; Colletes
canadensis Cress., ibid. 166.

Say says that his species flies in March and April. I have taken
it from the 20th of March to the 28th of May, while the species
which Cresson has doubtfully referred to C. incequalis I have taken
only from the 30th of August to the 7th of October. This early
species, which agrees with Say’s description of C. incequalis, I have
compared with the types of C. propinqua in the collection of the
American Entomological Society. I have also examined the types
of C. canadensis. A specimen which Mr. Cresson doubtfully referred
to C. canadensis is nothing, I think, but C. incequalis.

Colletes eoin pacta Cress.

This species may be most readily distinguished from the other
species known to me by its metathorax, which, instead of the usual
transverse series of pits, presents a rugose triangular enclosure. It
Hies in Autumn.

Colletes distincta Cress.

The female closely resembles the male, but is more finely punc¬
tured, the vertex and mesoscutum have more black hairs, and the
abdominal fasciie are white, the fascia on drst segment being con¬
tinued upon base of second. I have taken this species in Florida.

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

116

CHARLES ROBERTSON.

Colletes llioracica Sm.

This handsome species, taken in Florida, may be readily identified
from Smith’s description. It was not recognized by Cresson.

Colletes willistouii Rob., Trans. Am. Ent. Soc. xviii, 60.

The % closely resembles the 9 . This is a little smaller than C.
lutitarsis Hob. and may be distinguished by the hind tarsi being much
more slender.

Colletes armuta Patton, Proc. Bost. Soc. Nat. Hist, xx, 143. 1879; C. scitult
Patton, ibid.; C. nuequalis Cress, (nec Say), ibid. xii. 166, 1S68; C. spinom
Rob.. Trans. Am. Ent. Soc. xviii, 60, 1891.

Cresson ’s Catalogue does not give the synonyms of' Patton’s paper,
for which reason I did not know of them, and redescribed this species
and the next. All of the males which I have seen have some black
or fuscous hairs on the thorax above, which leads me to suspect that
the males referred to this species by Patton do not belong to it. 1
have seen an example of the type of C. scitu/a and regard it as the
male of this Colletes.

Colleles aestivalis Patton. Proc. Bost. Soc. Nat. Hist. xx. 142-4. 1879:
heueherse Rob.. Trans. Am. Ent. Soc. xviii, 61. 1891.

This species is the special pollinator of the flowers of Heuchera.
Mr. 1 )atton captured it on flowers of Heuchera americana in Con¬
necticut, and in Illinois I have taken it abundantly on H. hlspida.

Colletes euloplii Rob.. Trans. Am. Ent. Soc. xviii. 61 ; Colletes illinoiensis
Rob., ibid. 62.

This species closely resembles C. americana Cress., but has the ab¬
domen more strongly punctured and with narrower fasciae, and there
is a well-marked interval between the base of the mandibles and the
eyes. In C. americana these almost touch, while in C. euloplii there
is quite an interval, which in the £ is subquadrate.

Prosopis modest us Say: Hylsens modest us Say. Bost. Jour. i. 392. 1837. Lee
edit. ii. 771 : Prosopis affinis Sm.. Brit. Mus. Cat. Hym. i, 24. 1853 ; Cress.,
Proc. Bost. Soc. Nat. Hist. xii. 270.

Prosopis pygmsea Cress.

The 9 has the usual spots on the bases of the tibiae, those on an¬
terior pair extending nearly to tip. There is a variable yellow spot
on each side of face, one on tegulae, on tubercles, and often on apex
of clvpeus, but some specimens show no yellow markings, except on
the tibiae. I have taken the sexes in copula.

NORTH AMERICAN HYMENOPTERA.

117

Splicco<lcs arvensis Patton, Am. Ent. iii, 230, 1880; H< diet us scabrosus
Provancher, Faun. Ent. Can. 700, 1883.

This species, as well as S. faldfer Pttn. and mandibularis Cress.,
is common in Illinois.

Hal ictus foxii : Halictus gracilis Rob. (nec Morawitz), Trans. Am. Ent. Soc.
xvii, 310.

Dedicated to Mr. Wm. J. Fox.

Halictus macou pi ucusis : Halictus 4- maculates Rob. (nec Schenk), Trans.
Am. Ent. Soc. xvii, 316.

Halictus fascial us Nylander.

Smith, in Brit. Mus. Cat, Hvm. i, 48-9, makes this a synonym of
H. tumblorum L. and credits H. flavipes F. to America. Onr species
is the N. fasdatus Nyl. (H. flavipes Thompson).

Halictus stultus Cress.

This species may be distinguished from all of the species of Halidas
known to me by its abdomen, which is depressed, widest at third
segment, first two segments shining, third and fourth opaque and
evenly clothed with sparse, closely appressed hairs.

Halict us pilosus Sm.

The % of this species is like the 9 , but less pubescent. The
clypeus strongly produced; the flagellum beneath, apex of clypeus,
labrum, mandibles, knees, tibiae at apex and tarsi yellowish testa¬
ceous. It resembles % of .H. fasdatus, but is smaller, legs less yellow,
and abdomen without fasciae, etc.

Hal ictus zepliyrus Sm.

The 9 is uniformly brassy green and usually smooth and shining,
mesothorax sparsely and feebly punctured, disc of metathorax with
feeble rugae at base. The abdomen has appressed ochraceous pubes¬
cence on each side of bases of second and third segments and over
fourth and fifth. I have taken the sexes in copula.

Halictus nymplisearum : Halictus palustris Rob. (nec Morawitz), Trans.
Am. Ent. Soc. xvii. 317.

Halictus platyparius 9- — Head and thorax dull greenish, the abdo¬
men brownish. Face broad, wider between the eyes above than below, closely
and finely punctured above, more sparsely punctured below : the clypeus short
and broad, not produced ; flagellum stout ; cheeks broad, strongly produced to an
angle below ; the flagellum, mandibles, tegul* and nervures, and legs dull testa¬
ceous; prothorax with short lateral angles, mesothorax smooth and shining, finely

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

118

CHARLES ROBERTSON.

and sparsely punctured, disc of metathorax with longitudinal rugae not reaching
apex; abdomen shining, impunctate with very thin pubescence; hind spurs with
few teeth. Length 6 mm.

Hub. — Illinois ; five specimens. It closely resembles //. cep halicus,
but is distinguished by its face being broader above than below and
the flagellum being less slender, etc.

Aiigochlora viridula Smith, Brit. Mus. Cat. Hym. i, 81, g ; A. lucidula
Smith, ibid. 81-82, 9 — see Patton, Bull. U. S. Geo. Surv. v, 366.

Augoclilora fervida Smith, Brit. Mus. Cat. Hym. i, 81.

For a long time I have known only the 9 of this, which I had
determined as A. hunter alis Pttn. Patton’s description seems to
indicate no difference, except that the male does not have pale tarsi.

Agaposteinon viridula F. ; Apis viridula F., Ent. Syst. ii, 342; Agaposte-
mon nigricornis Cress, (net* F.), Cat. Hym. N. A., 309; A. bicolor Rob., Trans.
Am. Ent. Soc. xx, 148.

In Cresson’s Catalogue the synonym of this species is not given
under Agapodemon, but under Apis ; so I overlooked it and rede¬
scribed the species as *1. bicolor.

Agaposlcinon scricca Forst. ; Apis scricea Forst., Nov. Spec. Ins. i, 91.

As in the case of the description of A. tricolor Lep., nothing can
be made out of the description of this insect, except that it is some
male Agapostemon.

Andrena vicina Smith, Brit. Mus. Cat. Hym. i, 112, 9 ; A. hirticeps Smith,
ibid. 116, % ; A. bicolor Rob. (nec F.), Trans. Am. Ent. Soc. xviii, 51.

This is a common and very variable species. I11 Illinois the com¬
mon form has the pubescence of the head black, except a little
ochraceous about the base of the antennae and on the vertex ; some¬
times there is no ochraceous pubescence on head, except a slight
indication on the vertex. The thorax is ochraceous above, but some¬
times this color extends to the hairs beneath ; elsewhere the pubes¬
cence is black, but specimens in which the ochraceous predominates
sometimes show a pale fioccus. I suspect that A. errans Sm. is only
a variety of this species.

Andrena erytlirogasler Ashmead; Cilism erytkrogaster Ashmead, Bull.
Col. Biological Association i, 6, 1890; A. perezi Rob., Trans. Am. Ent. Soc.
xviii, 51.

Andrena pruni Rob., Trans. Am. Ent. Soc. xviii, 51.

The male of this species closely resembles that of A. sayi. It is
distinguished by its somewhat smaller size, clearer wings, the abdo-

NORTH AMERICAN HYMENOPTERA.

119

men more shining, less pubescent, and the last segment beneath
provided with a conspicuous tuft of hair.

Andi’cna erigenise Rob., ibid. 52.

The abdomen of the male terminates in a strongly forked process,
each division of the process being quite slender and pointed.
Aixlrena gcranii Rob., ibid. 54.

This species is often quite blue, but is sometimes quite black,
without any metallic reflection.

Aixlrena pulcliclla Rob., ibid. 57.

The male of this species closely resembles the female. Besides
the large spot on each side of the face, which also occurs in the 9 ,
the clypeus also is yellow, except two 'spots on the disc, and the an¬
terior margin. The labrum has a strong process, which, from in
front, appears strongly bidentate ; apex of tibiae and tarsi yellow
testaceous.

Androua alicia; Rob., ibid. 57.

This was described from a single female specimen. I now have
nine females agreeing with the type. The male agrees with the
female, except in characters peculiar to the sex. This is the only
Andrena known to me in which the female has the clypeus yellow,
the same as in the male.

Aixlrena serotina Rob., Trans. Am. Ent. Soc. xx, 148.

The insect described as the male of this species does not belong
to it, but is the male of the next.

Andrena platyparia 9. Black; head large, slightly broader than tho¬
rax ; clypeus moderately convex, rather closely and strongly punctured on the
sides, apical border somewhat reflexed, with lateral angles prominent; basal pro¬
cess of labrum quite prominent, long, narrowed towards base, or subquadrate and
concave in front; third joint of antennae about equal in length to fourth and
fifth together; cheeks strongly and broadly produced behind eyes, bordered by a
more or less evident rim ; disc of mesothorax with rather shallow, sparse punc¬
tures, clothed with thin, pale pubescence ; scutellum almost impunctate, shining ;
disc of metathorax with the enclosure rather strongly reticulated. Wings slightly
clouded, nervures testaceous, stigma often with fuscous spot, teguhe with testa¬
ceous spot. Abdomen shining and almost impunctate on first segment, elsewhere
with fine, sparse punctures and short, sparse pubescence ; segments 2-4 with nar¬
row, white, apical fasciae, more or less interrupted on second, anal fimbria fulvous.
Legs with the pubescence inclining to ochraceous, especially the scopa;, fioccus
white, apical joints of tarsi ferruginous. Length 8-9 mm.

y = A. serotina Rob. ^ .

Hub. — Illinois; nineteen female specimens.

TRANS. AM. ENT. SOC. XXII.

MAY, 1895.

120

CHARLES ROBERTSON.

Anrirena iiasouii 9 . — Black ; clypeus slightly convex, finely roughened,
with numerous shallow punctures ; basal process of labrurn short, triangular,
broadly truncate; third joint of antennae about the length of fourth and fifth
together, lateral depressions of face with the pubescence whitish, cheeks narrow ;
mesonotum opaque, finely roughened, with sparse punctures, pubescence och ra¬
coons, disc of metathorax with triangular enclosure bordered by a raised line,
rather strongly reticulated. Wings hyaline, nervures and stigma pale testaceous,
tegulae mostly testaceous. Legs with pale pubescence, the scopa with rather short
hairs. Abdomen depressed, opaque, roughened with close shallow punctures,
apical margins of segments slightly and broadly depressed, narrowly testaceous,
with narrow whitish fasciae, interrupted anteriorly, fimbria pale ochraceous
Length 8-9 mm.

Hub. — Illinois; four specimens.

AiMlrciia spiraai ua 9- — Black: head broader than thorax; clypeus
shining, thinly pubescent, rather closely and strongly punctured, with a median
ridge, which is impunctate; basal process of labrurn short and broad; third joint
of antennas shorter than next two together, flagellum dull testaceous beneath ;
mesonotum and scutellum rather closely and strongly punctured, clothed with
short, thin, fulvous pubescence , metathorax strongly reticulated, the disc with
several short, slightly irregular longitudinal ridges, enclosure poorly defined lat¬
erally, but bounded by a sharp l-idge at the edge of the truncation. Wings hya¬
line, nervures and stigma testaceous, the tegulae dull. Legs dull ferruginous, the
pubescence pale fulvous. Abdomen shining, finely and sparsely punctured, the
second segment presenting a faint fovea on each side near base ; the apical margin
depressed for about two-thirds of the segment medially, third and fourth seg¬
ments depressed more than one-half, apical margins of segments 2-4 with narrow
fasciae of white pubescence, interrupted broadly on second, less so on third ; fim¬
bria fulvous. Length 9 mm.

. — Resembles the female, third joint of antennae shorter than fourth. Length
7 mm.

Hub. — Illinois; one male, nineteen female specimens.

Closely resembles .1 . rugosa, but is smaller, more shining, less
strongly punctured on thorax and abdomen, mesonotum more thinly
pubescent. The males of this group are very hard to distinguish.
They can only be readily identified by comparison with the females.

A n«l re n a liippotes 9- — Black, the middle tarsi and hind tibiae and tarsi
red ; clypeus closely, strongly and evenly punctured ; basal process of labrurn
short, broad, emarginate ; third joint of flagellum shorter than next two together,
disc of mesothorax strongly, not closely punctured, with thin, pale pubescence ;
enclosure of metathorax strongly rugose, poorly defined laterally, terminating in
a sharp edge at truncation. Wings nearly hyaline, nervures and stigma testa¬
ceous, tegulae with a testaceous spot. Legs blackish, apical joints of front tarsi,
middle tibiae at tips, their tarsi, and hind tibiae and tarsi ferruginous red. Ab¬
domen shining, closely and finely punctured, segments 2-4 depressed to the mid¬
dle, or a little beyond on second : the same segments with interrupted fasciae of
white pubescence, fimbria pale fulvous ; the usual fovea on each extreme side of
second segment. Length 8-9 mm.

NORTH AMERICAN HYMENOPTERA.

121

'J, . — More pubescent on clypeus and mesonotum, third joint of flagellum
shorter than fourth. Legs more yellow. Length 7-9 mm.

Hab. — Illinois ; ten male, thirty-four female specimens.

Paniirgus? undrenoides Cr., Trans. Am. Ent. Soc. vii, 62; P.f neva-
densis Cr., ibid. 214.

Some male specimens from here were referred by Mr. Cresson to
P. andrenoides, others to P. nevadensis. It is a common and very
variable species. The last ventral segment in the male has its lateral
angles reflexed as in Andrena cratcegi $ . The female is black,
clypeus rather strongly punctured on the sides, basal process of
labrum short and triangular, mandibles rufous in middle or at tips,
flagellum testaceous beneath. Abdomen red, sometimes with a little
blackish, or even entirely black, hind tarsi and often the tibiae, pale
ferruginous. Length 8-9 mm.

I suspect that this species belongs to Smith’s genus Scrapter.

Pan nrgiis aiituiniialis 9— Black, clothed with pale pubescence, which
is rather short and dense on mesonotum ; face finely and densely punctured, ex¬
cept a shining, not depressed, space along the eyes ; clypeus short, very transverse,
truncate; labrum nearly as large, subquadrate, rounded anteriorly, transversely
striate at base; flagellum testaceous beneath towards tip ; mesoscutum finely and
densely punctured, disc of metathorax flat, finely sculptured. Wings whitish
hyaline, nervures and stigma pale, submarginal cells of equal length, outer margin
of tegulfe dull testaceous. Legs slender, pubescence pale, black, the small tarsal
joints, except the last one, pale. Abdomen somewhat shining, almost impunctate,
with pale pubescence at apex, apical margins of segments broadly pale testaceous.
Length 7-8 mm.

Hab. — Illinois ; seven specimens.

Calliopsis rugosus 9- — Closely resembles C. mexicanus Cr., and C. scaber
Fox, Proc. Cal. Acad. Sci. ser. 2, vol. iv, 115; it differs from the former by its
smaller size and the abdomen being bare, except the anal fimbria, which is pale,
except at tip of abdomen, where it is fulvous; second submarginal cell narrowed
one-half towards marginal : from C. scaber it differs in having the clypeus without
impressed line, and in the more closely punctured dorsulum, subequal submar¬
ginal cells and less pubescent abdomen. Length 7-8 mm.

'k . — This sex differs from that of C. mexicanus in its smaller size, and in being
less pubescent, also in having the clypeus, a spot on each side of face, the tibiae
exteriorly and the basal joints of each tarsus yellow. Length 7 mm.

Hab. — Illinois ; twelve female, one male specimens.

Calliopsis asteris % .—Black, slightly shining, quite bare, beneath the
pubescence is rather long and quite thin, across prothorax and postscutellum and
about tubercles there is a close white tomeutum. Head coarsely punctured, ex¬
cept above antenme on face, and closely, except on each side of face near eyes ;
labrum with a subquadrate, concave, shining process; antennae black, third joint

(16)

TRANS. AM. ENT. SOC. XXII.

MAY, 1895

122

CHARLES ROBERTSON.

nearly as long as two following together, mesonotum closely aud finely punctured,
disc of metathorax short, longitudinally striate at hase. Wings dusky at apex
and in marginal cell, second submarginal cell shorter than first, narrowed one-
half towards marginal, receiving first recurrent nervure about one-third from
base, the second at apex, or the second uniting with second transverse cubital ;
nervures and stigma black, tegulse testaceous, except in front. Legs with pale
pubescence, the tibial scopa whitish ; first segment of abdomen shining, sparsely
and finely punctured, the others densely punctured, apical margins of segments
depressed and dull testaceous, anal fimbria inclining to fuscous. Length 6 7 mm.

^ . — Resembles the female, the sparse pubescence and tomentum above inclining
to ochraceous; clypeus, generally a spot above, a spot on each side of face, pro¬
cess of labrum, middle of mandibles, tubercles usually, knees, anterior tibiae in
front and base and apex of others, and tarsi, except two or three apical joints,
yellow ; clypeus anteriorly and process of labrum with a narrow black edge ;
third joint of antennae longer than fourth, flagellum sometimes testaceous be¬
neath in the middle, abdomen with segments 2-4 depressed and minutely rough¬
ened at hase, elsewhere more shining and more sparsely punctured than in female.
Length 5-6 mm.

Hub. — Illinois; seven females, twenty-three males. The sexes
were taken in copula.

C'alliopsis rmlbeckise 9- — Black, shining, slender, pubescence thin
and pale, except on mesothorax above, where it is close and ochraceous ; clypeus
and sides of face rather coarsely and sparsely punctured, elsewhere more closely
and finely punctured ; middle of labrum presenting a subquadrate space which is
concave, shining, finely striate at base and emarginate apically; mandibles ru¬
fous; antennae black, third joint about as long as two following together; meso¬
notum and scutellum shining, finely and evenly punctured, clothed with rather
close pubescence; metathorax bare, shining, disc short, striate basally. Wings
subhyaline, second submarginal cell shorter than first, narrowed nearly one-half
towards marginal, receiving first recurrent nervure about one-third from base and
the second near apex, nervures and stigma dark, teguhe testaceous. Legs black¬
ish, anterior and middle knees with a yellow spot, basal joint of hind tarsi paler,
the scopa whitish. Abdomen shining, especially first segment, which is almost
impunctate, other segments finely and closely punctured toward base, broad apical
margins smooth, piceous, anal fimbriae ochraceous. Length 6 mm.

'J, . — Resembles male of preceding, but is distinguished from it, and all other
male Calliopsis known to me, by its clypeus presenting a broad median depression,
which is impunctate, or nearly so. Length 5-8 mm.

Hub. — Illinois; twenty-three females, forty-two males.

C’alliopsis labrosus 9 • — Black, shining, thinly pubescent ; face with
shallow punctures of medium size, rather sparse, except above aptenme ; labrum
presenting a median facet, which is strongly narrowed to au apex, which is trun¬
cate or rounded ; third joint of antennae nearly as long as two following together,
flagellum testaceous beneath, at least the middle joints ; mandibles, sometimes
the clypeus anteriorly, and the labrum entirely testaceous, the mandibles more

NORTH AMERICAN HYMENOPTERA.

123

rufous ; anterior and middle knees and sometimes tubercles yellow ; prothorax
and about tubercles with a short ochraeeous tomentum ; mesonotum nearly bare,
with close, rather coarse punctures anteriorly, becoming finer and more sparse
posteriorly ; disc of metathorax short, irregularly striate at base, smooth and
shining. Wings hyaline, or nearly so ; second submarginal cell shorter than first,
narrowed about one-third towards marginal ; nervures testaceous, stigma fuscous,
tegulfe testaceous. Legs blackish, scopa white. Abdomen shining, especially the
first segment, which is almost impunctate, segments broadly depressed, all except
first finely punctured, anal fimbria pale ochraeeous. Length 6-7 mm.

y . — More coarsely and closely punctured ; clypeus, a spot above, one on each
side of face, labrum, mandibles except tips, knees, anterior tibiae in front and
tarsi, except apical joints, yellow ; teg u l;e a little darker, middle joints of flagellum
testaceous beneath : basal process of labrum slightly emarginate at tip. Length
5-6 mm.

Hab. — Illinois ; seven females, two males.

('alliopsfs compositariiin Rob., Trans. Am. Ent. Soc. xx, 274. 9 .—
The male closely resembles the female, the nervures darker; scape and flagellum
long ; face below, antennae, labrum, mandibles, except tips, knees, tibiae, except
spot behind anterior pair and on each side of others, and tarsi, except claw joints
yellow. Length 5-6 mm.

Hab. — Illinois ; sixty-six females, twenty-six males. This species
is easily distinguished by its densely punctured mesothorax, the
punctures large and shallow.

Xoinuda aftabilis Or., y, Trans. Am. Ent. Soc. vii, 74, 1878; Nomada
vinctn Cr. (nec Say), 9, Proc. Ent. Soc. Phil, ii, 284, 1863. Female.— Mandibles
simple, third joint of antennae longer than fourth, flagellum dull ferruginous
beneath, darker above ; mesonotum ferruginous or black, with four yellow or
ferruginous lines, large spot on pleura and on each side of metathorax yellow.

y . — Third joint of antennae longer than fourth, apical segment of abdomen
entire, thorax more black, scape cylindrical, yellow beneath.

This is a vernal species, and Hies in the neighborhood of Carlin-
ville from the 18th of April to the 20th of June.

Nomada vilicta Say, Bost. Jour, i, 401 ; Lee., edit, ii, 778, 1837.

I have four females of this species which agree well with Sav’s
description. It is a little smaller than preceding, less strongly punc¬
tured, more black, less pubescent, face below antennae ferruginous
orbits yellow, third joint of antennae longer than fourth, flagellum
dusky in the middle, mesonotum black, with a narrow ferruginous
margin over tegulae, in one specimen with an indication of two me¬
dian ferruginous lines ; otherwise resembling preceding.

TRANS. AM. ENT. SOC. XXII.

MAY, 1895

124

CHARLES ROBERTSON.

The male closely resembles female, so much so that there can be
no doubt to one having both sexes before him ; scape club-shaped,
rounded above, of same color as flagellum, third joint of latter longer
than fourth, apical segment of abdomen entire.

I think the male described by Say does not belong here. This is
an autumnal species, and in my neighborhood flies from September
12 to 2b.

The two preceding species of Nomada resemble AT. superba in
having the third joint of antennae longer than fourth, and the apical
segment of the abdomen in the male entire, not bifid as in many
other species.

Among specimens which I originally referred to N. luteola Lep.,
I find a number of individuals which indicate a distinct, though
closelv allied species. The ornaments are very similar, but the struc¬
tural characters of antennae and metathorax are quite different. The
following descriptions indicate the more important distinctions.

Nomada luteola 9 • — Third joint of an ten nse shorter than fifth and nearly
one-half shorter than fourth, enclosure of metathorax roughened at base, minutely
‘roughened beyond, large subquadrate spot on each side of metathorax extending
into enclosure.

^ . — An ten me with joints cylindrical, not denticulate, third joint one-half, or
even less, as long as fourth, enclosure of metathorax roughened at base, minutely
so beyond.

Nomada luteoloides 9- — Third joint of antennae shorter than fourth,
the latter only a little longer than fifth, enclosure of metatliorax rather strongly
rugose throughout, spot on each side hardly subquadrate and not encroaching on
enclosure.

^ .—Antennae submoniliform, joints 7-10 each with an evident denticle beneath
near apex, third joint shorter than fourth, but not greatly so. insect black, with
yellow ornaments.

Hub. — Illinois; two females, eight males.

Nomada articulata Sm„ Brit. Mus. Cat. Hyr.i. ii. 248; nec. Cr. Proc. Ent.

Soc. Phil, ii, 297.

This species resembles the male of preceding. The ornaments are
ferruginous, except those of head and abdomen and a spot on pleura,
which are yellow ; antennae more moniliform, the denticles beneath
joints of flagellum more evident, fourth joint a little longer than
third or fifth, which are subequal.

NORTH AMERICAN IIYMENOPTERA.

125

Noinada americana K1»y., Faun. Bor.-Am. iv, 269, 1837 ; N. bisignata var.
Say, Boat. Journ. i, 402, 1837 ; N. vnlida Sm., Brit. Mas. Cat. Hym. ii, 246,
1854; N. annulata Sm.. ibid. 248, % (nec 9); N. articulata Or. (uec Sin.),
Proc. Ent. Soc. Phil, ii, 297, 1863; N. incerta Cr., ibid. 309.

Osiilia bucepliala Cr., Proc. Ent. Soc. Phil, iii, 17, 9 i 0. latitarsis Cr., ibid

20, V

Osiilia a ll>i veil t l'is Cr., Proc. Ent. Soc. Phil, iii, 31, % 9 ; 0. rustica Cr.,
ibid. 37, % .

Ilegacliile 6-<Ientata % . — Black, robust, with abundant pubescence,
which is ochraceous above and white beneath, face densely pubescent, that on
clypeus white, on face above ochraceous ; mandibles and antennae black, vertex
shining, with median sized, close, shallow punctures, mesonotum opaque, more
densely and finely punctured, the pubescence rather short and thin, but not with
any admixture of black. Wings hyaline, apical margin faintly dusky, nervures
dark, tegulse testaceous. Legs dull ferruginous, anterior femora and tibiae ferru¬
ginous within, coxal spines nearly concealed by pubescence. Abdomen shining,
rather coarsely punctured, especially towards apex, first segment widely excavated
at base, disc in middle quite short, the segment with long ochraceous pubescence:
remaining segments with short, thin, ochraceous pubescence, except on apical
margins of segments 2-4 and basal margins of 4-6, where it is dense and de¬
pressed ; sixth segment with the usual elevation, which, however, is unusually
prominent, narrow and deeply and roundly notched, so that it appears like two
large spines and exposes to view two prominent spines on each side of the apical
margin, beyond these on the seventh segment appears a conspicuous elevation,
which is itself bidentate at apex. Length 11 mm.

Hub. — Illinois; one male.

Megacliile lloridana % . — Black, robust, vertex and abdomen somewhat
shining, pubescence beneath rather long and white, on the face dense and with a
tinge of yellowish, on the vertex, mesonotum and discs of abdominal segments,
except first and sixth, it is black; mandibles large, black, flagellum dull testace¬
ous beneath, mesonotum more closely punctured than vertex or abdomen. Wings
subhyaline, with a purplish reflection, apical margin dusky, nervures dark, tegulse.
black; coxal spines conspicuous, flattened. Legs black, anterior femora and tibiae
within, and apex of tibiae yellow ; tarsi white and with a dense brush of white
pubescence posteriorly, the joints strongly flattened, but not otherwise greatly
modified, first joint widens to apex, second about as wide as apex of first, from
which the tarsus narrows to the claw joint, middle and hind tarsi pale yellowish
anteriorly, the middle tarsi strongly ciliate posteriorly, all the claws honey- yellow
with dark tips ; basal segment of abdomen strongly excavated, the disc not un¬
usually narrow and clothed with long pale pubescence, apical margins of segments
2-5 with fascise of pale pubescence much wider on sides ; elevation of sixth seg¬
ment prominent, not deeply notched in the single specimen before me ; the ex¬
treme edges of this segment presents on each side a small inconspicuous spine,
and a rounded carinate elevation further inward. Length 12 mm.

Hub. — Florida ; one male.

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

126

CHARLES ROBERTSON.

Ceratina tejonensis Ci\, Proc. Eut. Soc. Phil, ii, 390, £ .

This was described from a California specimen, but in Cresson’s
Catalogue it is credited to Nevada, and it was found by Provancher
in Canada. It is common in Illinois. I have thirty-five specimens;
it is quite as common as males of C. dupla, and I have taken it from
March 21 to September 23. I find no difference from males of C.
dupla, except in structure of hind femora, and this does not present
any intermediate forms. The trouble is that I do not find any female
for it, and I suspect that it is a dimorphic male of C. dupla, or that
its female cannot be distinguished from that species. I think it will
be found wherever C. dupla occurs.

Sy n lia Ion i a Ira t or Cr. ; Melissodes frater Cr., Proc. Acad. Nat. Sci. Pliil.
1878, 195, % ; Synhalonia frater Patton, Bull. U. S. Geol. Surv. v, 474; Me¬
lissodes speciosa Cr., Proc. Acad. Nat. Sci. Phil. 1878, 198, 9 > Melissodes
dttecta Cr. ibid. 199, % .

This is a common species in Illinois. I have often taken the sexes
in copula. I have seen the types of S. frater in the collection of the
American Entomological Society. They are worn and faded speci¬
mens.

Synlialonia hclfragei Cr. ; Melissodes belfragei Cr.. Trans. Am. Ent. Soc. iv,
278, 9 '• Melissodes honesta Cr., ibid. 279, £ ; Synhalonia honesta Patton, Bull.
U. S. Geol. Surv. v, 474, y .

This is also common in Illinois. I have taken the sexes in copula.

Synhalonia atriventris Sm. ; Melissodes atriventris Sm., Brit. Mus. Cat.
Hym. ii, 310, 1854, % ; Synhalonia atriventris Cr., Cat. Hym. N. A., 305, 'J, ;
Melissodes dubitata Cr., Proc. Acad. Nat. Sci. Phil. 1878, 194, 9 •

Synhalonia ni gripes Sm. ; Melissodes nigripes Sm., Brit. Mus. Cat. Hym.
ii, 311, 1854, 9 •

Mel isso<les illiuoeusis 9- — Black; clypeus finely roughened, closely
punctured with rather coarse, shallow punctures, except a median elevated liue,
apex ferruginous ; labrum yellow, with dense pale pubescence ; mandibles honey-
yellow in the middle, with a yellow streak at apex ; antennae black, tip of scape
and second joint ferruginous, third joint black, a little longer than next two
together; remaining joints ferruginous, darker above; vertex shining, naked
and feebly punctured ; sides of face and cheeks beneath with white pubescence,
occiput above with ochraceous pubescence ; mesonotum and scutellum closely
punctured, hardly shining, pubescence rather short and ochraceous, except on
the disc and edge of scutellum, where it is fuscous. Wings hyaline, nervures and
tegulee testaceous; submarginal cells of about equal length, third narrowed one-

NORTH AMERICAN HYMENOPTERA.

127

half above. Legs blackish, the pubescence ochraceous, apical joints of tarsi fer¬
ruginous, scopa whitish. Abdomen opaque, first segment with ochraceous pubes¬
cence at base and on sides, apex rather broadly pale testaceous, basal margin of
second with a narrow fascia of appressed ochraceous pubescence, broad apical
margins of segments 2-4 with dense, appressed, white fasciae, pubescence of fifth
and sixth segments black or fuscous, beneath the abdomen has dense, ochraceous
pubescence. Length 12 mm.

. — Resembles tbe female, the pubescence being longer and thinner, tegulae
and nervures sometimes darker, segments 2 4 of abdomen with margins sometimes
more evidently testaceous, fascia at base of second segment white, fifth segment
also with a white fascia, and sixth with pubescence sometimes black, sometimes
pale; clypens, labrum and mandibles at base pale yellow, the latter at apex with
an orange-yellow streak ; third joint of antennae as long, or twice as long, as
second, fourth longest of all, flagellum fulvous beneath, apex of tibiae and the
tarsi ferruginous, or sometimes the knees and the tibiae and tarsi entirely ferru¬
ginous. Length 11-12 mm.

Hub. — Illinois ; one female, three males.

Melissortes pallicla 9- — Black, clothed with pale pubescence, which
inclines to ochraceous on the thorax above ; face rather closely pubescent, clypeus
closely and strongly punctured, mandibles rufous in middle, with a yellow streak
at apex, antennae black, third joint about equaling next two together, flagellum
dull testaceous beneath. Thorax above densely pubescent, except on disc of
mesonotum and scutellum, more sparsely punctured on former. Wings subhyaline,
second submarginal cell a little smaller than first, third narrowing one-half above,
nervures dull testaceous, teguke piceous. Legs black, apical joints of tarsi ferru¬
ginous; pubescence pale ochraceous, becoming fuscous on apex of tibiae and tarsi,
scopa pale, on the basal joint of hind tarsi within it is black. Abdomen opaque,
basal segment with pale pubescence at base and laterally, base of second and
broad apical margins of segments 2-4 with appressed white pubescence, segments
5 and 6 with black pubescence, the abdomen beneath has the pubescence fuscous,
paler towards apex. Length 14 mm.

Hub. — Illinois ; one female. This looks like the female of Synha-
lonia f rater, but is a little smaller, and has paler legs, etc.

tlel issoilcs nivea 9 • — This species closely resembles M. perplexa Cr., but
is distinguished by the pubescence being longer, more dense and more whitish ;
the anterior margin of occiput above with few fuscous hairs, mesothorax with
dense cinereous pubescence, except about bare space on posterior margin of meso¬
notum and scutellum, where it is slightly fuscous. Wings whitish hyaline, the
nervures testaceous. Legs with pale pubescence, except sometimes on anterior
tarsi, where it is tinged with fuscous, scopa white ; first segment of abdomen with
posterior margin pale testaceous, the fasciae on segments 2-4 more broad and white
than in M. perplexa. Length 10 mm.

Hab. — Illinois ; seven females.

TRANS. AM. ENT. SOC. XXII.

MAY, 1S95.

128

CHARLES ROBERTSON.

Aiilltoplioi'it iir*iiia Cr., Trans. Am. Ent. Soc. ii. 291, ^ .

This species is common in Illinois. The female hears a very
strong resemblance to Habropoda floridana Sm., but is distinguished
by the venation. It is distinguished from A. abrupta Say by its
larger size, the first segment of abdomen having more ochraceous
pubescence, and the ochraceous color of thorax not being continued
down the sides beyond the middle. The type of the male is faded,
fresh specimens having the pubescence of thorax more ochraceous.

NORTH AMERICAN HYMENOPTERA.

129

THE C'lM 15 R O X I \ JE OF BOREAL AMERICA.

BY' WILLIAM J. FOX.

The Crabronime form a well-marked subfamily of the Sphegidse,
and includes the genera Entomognathus, Anacrabro and Crabro, and
has a vast number of described species in the world. This is par¬
ticularly true of Europe, which has in the neighborhood of one
hundred and fifty known species; fully two-thirds of that number
are treated of in this paper as occurring in Boreal America, includ¬
ing Canada, the United States and the peninsular of California
(Lower or Baja California) ; and it is safe to say this number will be
greatly increased in the near future, and that our fauna will be found
to be fully as rich in species as that of Europe. The species of
Crabro are in many cases difficult to separate, and this, together with
the fact that our only existing monograph is faulty as to the arrange¬
ment of the species, allied forms in many cases being placed in dif¬
ferent groups, and the overlooking of important characters, and the
magnification of minor points, has caused confusion in more than one
case, as I know from experience. I was fortunate in having the types
of nearly all of Packard’s species, which aided materially in straight¬
ening out many points, which otherwise would have remained ob¬
scure. Cresson’s types were also of much assistance. It must not
be understood for an instant that I mean to invalidate the work of
the author of the above-mentioned monograph, whose Revision of the
Fossorial Hymenpptera of North America, published nearly thirty
years ago, was an epoch of importance to American HymeHnopterology.

Crabro divides into numerous groups, some being well marked
and others difficult to separate, or differing in points only to be
found in one sex. Many of these groups of species were of generic
importance in the eyes of Lepelitier de St. Fargeau and his colleague
Bridle, who, in their Monographic du Genre Crabro. recognized
eleven genera, ten of which were of their own making. Dahlbom
in his 1 1 v menoptera Europsea, eleven years later reduces these to the
value of subgenera, evidently, and adds three new subgenera.
Shuckard, before the publication of Dahlbom’s work, rejects all of
the names proposed by St. F. and Bridle, and Smith, in Catalogue

TRANS. AM. ENT. SOC. XXII.

(IT)

MAY, 1895.

130

WILLIAM .T. FOX.

of Hymenopterous Insects in the collection of the British Museum,
Pt. Ill, synonymizes completely the genera and subgenera made by
the above mentioned authors, adding thereto the genus Entomogna-
thus Dahlb. Morawitz, Einige Bemerkungen iiber die Crabro-artigen
Hymenopteren, divides the species into two groups and seventeen
subgroups, which he states will probably have to be reduced to nine.
This author uses the names proposed by St. Fargeau and others to
distinguish the groups and names several for the first time.

Following closely on Morawitz’s work Packard’s monograph of
the Crabronime appeared. This author, evidently influenced by
Shuckard’s and Smith’s work, throws the greater number of the pro¬
posed genera, subgenera, etc., together under Crabro, but recognizes
Thyreopus, Blepharipus and Rhopalmn, and describes his Anacrabro.

Thomson, Hymenoptera Skandinavia, III, recognizes Rhopalum,
Entomognathus and Eindenim as genera, and under Crabro has
twelve subgenera, named as in Morawitz’s work. Kohl, Raubwespen
Tirols lists eleven subgenera and one specie's of doubtful position.
Cameron, Biologia Centrali- Americana comes out on the lines laid
down by Shuckard and Smith, and discards entirely the genera,
subgenera and groups proposed by preceding writers.

It will be seen from the foregoing review, for which the author is
partly indebted to Kohl’s, Die Crabronen der Section Thyreopus Lep.,
that hymenopterists had accepted no classification of these wasps as
a standard, but were on the contrary almost to a unit dissatisfied
with the work of their colleagues, and therefore endeavored to form
a system which each thought the most natural. It is not surprising
that St. Fargeau and Bridle considered Crabro worthy of more than
one generic name, when the few species then described are taken into
consideration, nor is it remarkable that with the constantly increasing
number of known species, each classification differed ; so it is to-day
that I feel compelled to accept the. system of Shuckard and Smith
almost in toto and discard the many names erected for subgenera,
groups, or whatever they have been considered, and unite under one
head, Crabro. I take exception, however, to regarding either En¬
tomognathus or Anacrabro as synonyms with Crabro, as they possess
characteristics, always constant, and not found elsewhere.

From the Oxybelinse, the Crabronime differ— 1, by the very broad
eyes, usually narrowed at the top ; 2, the metanotum without squamae,
and the middle segment not armed basally with a spine ; 3, the neu-
ration of the fore-wings, which contain a distinct submarginal cell,

NORTH AMERICAN HYMENOPTERA.

131

while in Oxybelus the submarginal cell is wanting, being merged into
the first discoidal cell ; the second discoidal cell in Oxybelus is short

and broad, in the Crabroninse long and narrow. The neuration of

Thorax of Gorytes mystaceus ( after
Handlirsch), in detail, to explain the
terms used in this paper, as appiied to
the parts of the thorax.

a, prosternum ; b, pronotum \ c x d ,
dorsulum ; e, episternum mesopleuralis ;
/, epimerum mesopleuralis*: (c xf meso-
pleura) g, mesosternum ; k, seutellum ;
!, metanotum (postscutellum) ; k X /, me¬
tapleura (k, epistetnum ; l, epimerum);
in, metasternum ; n, middle segment.

the Crabroninse is very similar to
that of the genus Trypoxylon, but
in the hind wings it differs : in Try-
poxy Ion the neuration is complete,
the submedian cell long, narrow,
fully half as long as the median ;
in the Crabroninse it is incomplete,
chiefly through the absence of the
marginal, cubital and discoidal
veins beyond the median and sub¬
median cells, and the submedian
cell is shorter, although its length
varies to a certain extent. In En-
tomognathus, however, there is a

faint trace of the marginal vein beyond the median cell, which fact

further strengthens its right to generic rank.

The three genera recognized in the present paper are distinguished

as follows :

Eyes hairy ; mandibles emarginate externally . Entomognatlms Dahlb.

Eyes naked ; mandibles entire externally.

Second discoidal cell long, narrow, much longer than the first, acuminate at tip,
or obtusely pointed ; epimerum mesopleuralis with a strong medial ridge,
extending from near the tegulse to the medial suture of the mesosternum,
the anterior ridge of episternum mesopleuralis meeting it a little before
its termination. Abdomen strongly depressed, beneath subconcave.

Anacrabro Pack.

Second discoidal short, shorter than the first, generally much so, at any rate
never longer, broadened and subtruncate at tip ; epimerum mesopleuralis
at the most with a ridge or crest just before the medial coxae, sometimes
entirely wanting, or represented by a small, pointed prominence. Abdo¬
men but little depressed, convex above and beneath. Crabro Fab. (s. 1.)

In the preparation of this paper it was found impossible to identify
the many subgenera and groups into which Crabro has been divided.
Such confusion seems to exist in the work of the older European
authors that the identification of the groups is an impossibility,
without the aid of authentically determined specimens of European

* In the Ciabroninae this part is not restricted by a suture, «s in Gorytes, but includes
the greater portion of the mesopleurre, and the sternum does not extend on the sides as
shown in the above figure.

TRANS. AM. ENT. SOC. XXII.

MAY, 1895.

132

WILLIAM J. FOX.

species, which at the present writing I do not possess. Inability of
determining the subgenera, groups, etc., was not, however, my reason
for the discarding the names in this paper, but because their use
would have necessarily led to the application of many more, a practice
too much in vogue in late years, and which should be discouraged.

The author desires to express his thanks for favors received from
the following persons, all of whom have either contributed specimens,
or have otherwise assisted : E. T. Cresson, Wm. H. Ashmead, C. V.
Riley, W. H. Harrington, J. A. Guignard, W. A. Nason, T. I). A.
Cockerell, G. C. Davis, A. S. Packard, O. B. Johnson, C. W. John¬
son, Mrs. A. T. Slosson and others.

ESfTOMOGMTHUS Dhlb.

Crabro (in pt.) V. d. Linden, Obs. ii, 70, % 9-
Crabro (in pt.) Shuckard, Foss. ILvrn. p. 175, sp. 33.

Lindenius (in pt.) St. F. and Brulle, Ann. Soc. Eut. Fr. iii, 800, 1834.

Entomognathus Dahlbohm. Hym. Eur. i, 295.

Crabro (in pt.) Smith, Morawitz, etc.

Entomognathus Thomson, Hym. Skand. iii, 259 ; Cresson, Synopsis Hym. pt. 1, p. 122.

Eyes covered with short hair ; mandibles emarginate externally,
unarmed at apex. Antenme 9 and S 12-jointed ; episternum meso-
pleuralis not ridged anteriorly, the epimerum without a central ridge
or a crest before medial coxae ; second discoidal cell about as long as
the first, broadest medially, subtruncate at apex; sculpture subtle.
Abdomen strongly convex above and beneath, the last dorsal seg¬
ment of both sexes with a well developed pygidium.

Entomognathus texanus Cress.

Entomognathm texanus Cresson, Synopsis Hym. pt. 2, p. 286, 9 % .

9 . — Head very sparsely punctured ; frontal impression strong, as are also those
running from the hind ocelli to inner orbits: dorsulum and mesopleura? appar¬
ently impunctate ; scutellum longitudinally impressed ; middle segment above
with large fossulets, formed by coarse rugae, posterior face strongly rugose,
bearing two strong carinse, which diverge from the centre of the apex, forming a
V, sides nearly smooth ; abdomen, except pygidium and second ventral segment,
impunctate. the parts mentioned bearing large punctures, those on the second
ventral much scattered ; pygidium long, triangular, covered with appressed pu¬
bescence. Black: shining, mandibles basally, scape, two widely separated spots
on pronotum, tubercles, spot on tegulse, two spots on scutellum, tips of all the
femora, particularly the four anterior tibiae, except a dark spot within ; tarsi
(apical joints darker), and a large spot on dorsal abdominal segments 1-5, yellow ;
pubescence of clypeus and inner orbits, silvery. Wings fusco-hyaline with a
yellowish tinge, nervures and stigma black. Length 7 mm.

^ . — Has the yellow on pronotum and legs more prominent, and the clypeus
entirely yellow ; last joint of antenme nearly as long as the two preceding ones

NORTH AMERICAN HYMENOPTERA.

133

united, somewhat curved and truncate apically ; fore tarsi a little flattened, hind
tarsi broader than in the 9 i second ventral abdominal segment rather finely and
closely punctured ; pygidium truncate at apex. Wings a little darker than in the
9 . Length 6 mm.

Texas. Very distinct from the European E. brevis.

ANACRABRO Pack.

Anacrabro Packard, Proc. Ent. Soc. Phila. vi, p. 67; Cresson, Synopsis Hym. pt. 1,

p. 122.

Crabro (in pt.) Kohl. Zool. Jahrb. (Abth. f. Syst., etc ), iii, p. 555.

Eyes naked ; mandibles entire externally, unarmed at apex. An¬
tennae (9l 12- (%) 13-jointed ; episternum mesopleuralis sharply
ridged anteriorly, the epimerum with a strong, central ridge extend¬
ing from near the tegulte to the central suture of the mesosternum ;
second discoidal cell long, narrow, much longer than the first and
acuminate at tip; sculpture coarse. Abdomen depressed, subcon¬
cave beneath, the last dorsal segment in both sexes with a well-de¬
veloped pygidium, the first segment not impressed, but possessing
two very strongly diverging keels.

Anacrabro ocellatus Pack.

Anacrabro ocellatus Pack., Proc. Ent. Soc. Phila. vi. p. 68. 9 •

9- — Head transverse, with strong, scattered punctures; frontal impression
remarkably strong; posterior orbits channeled, and the cheeks with a long keel ;
dorsulum and mesopleurse with strong, separated punctures, those on scutellum
larger and sparser ; middle segment above with strong fovea* formed by coarse
ruga1, posterior face coarsely rugose apically, with a strong triangular depression
on basal middle, lateral ridges strongly developed, sides with rather strong, close
punctures, on basal portion, however, somewhat striated ; femora broad, the an¬
terior pair flatter than the others; tibiae strongly spinose; abdomen, dorsally,
with strong, separated punctures, ventrally impuuctate; pygidium large, pointed
at tip, very coarsely punctured, sides a little rounded. Black, including scape
and mandibles, except a rufo-piceous spot in middle ; no yellow on pronotum :
tubercles, line on metanotum, tips of all the femora, tibiae and tarsi, except a dark
spot on the former internally, and a large spot, sharply truncate externally and
more or less pointed within, on dorsal abdominal segments 1-5, yellow; abdomen
testaceous ventrally. Wings on basal half subhyaline, apically fuscous, or the
fuscous forms a broad apical margin ; pubescence of clypeus and front silvery.
Length 6 — 7.5 mm.

% .—Similar to the 9 > except that the pygidium is shorter, broader, and broadly
truncate at apex, and is not as distinctly defined ; the markings are precisely as
in the other sex. Length 6 mm.

Massachusetts, New Jersey, Illinois, West Point, Neb. (Barber).

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

134

WILLIAM J. FOX.

CRABRO Fabr. (s. 1.)

Vespa (in pt.) Linne, Syst. Nat. Ed. 10, 1758.

Sphex (in pt.) Linne, Faun. Suec., 1761.

Spliex (in pt.) J. C. Schaffer, Icon. Ins. i, 1766.

Crabro (in pt.) Fabricius, Syst. Ent., 1775.

Pemphredon (in pt.) Fabricius, Syst. Piez., 1804.

Crabro Latreille, Hist. Nat. Ins. xiii, 1805; Gen. Crust, et Ius. ii, 1809.

Ehopahtm Kirby, Stephen’s Syst. Cat. Br. Ins., 1829.

Crabro St. Fargeau et Brulle, Ann. Soc. Ent. Fr. iii, 1834.

Solmius St. Fargeau et Brulle, ibid.

Blepharipus St. Fargeau et Brulle, ibid.

Ceratocolus St. Fargeau et Brulle, ibid.

Thyreopus St. Fargeau et Brulle, ibid.

Thyreus St. Fargeau et Brulle, ibid.

Crossocerus St. Fargeau et Brulle, ibid.

Lindmius St. Fargeau et Brulle. ibid.

Dasyproctus St, Fargeau et Brulle, ibid.

Corynopus St. Fargeau et Brulle, ibid.

Physoscelus St. Fargeau et Brulle, ibid.

Ectemnius Dahlbohm, Hym. Eur i, 1845.

Brackymerus Dahlbohm, ibid.

Megapodinm Dahlbohm, ibid.

Anothyreus Dahlbohm, ibid.

Podagritus Spinola, Gay’s Hist. Chili, vi, Atlas (zool.), PI. II, fig. 6, 1854.
Trachelosimus Morawitz (Group), Bull. Acad. Imp. Sciences, St. Petersburg, ix, 1866.
Tracheliodes Morawitz (Group), ibid.

Cupkopterus Morawitz (Group), ibid.

Clytochryms Morawitz (Group), ibid.

Ceeloerabro Thomson, Hym. Skand. iii, 1874.

Hoplocrabro Thomson, ibid.

Microcrabro Saussure. Graudidiers Hist. Madagascar xx, 1890.

Mesocrdbro Verhoeff, Entom. Nachrichten, xviii, 1892.

Head large, generally quadrate or subquadrate, sometimes more
transverse, its posterior margin always more or less margined, some¬
times, however, indistinctly (group pedicellatus) ; eyes naked; ocelli
distinct, forming a triangle or a curved line ; face depressed ; man¬
dibles dentate, or unarmed internally, externally entire, at apex
either bidentate in both sexes, tridentate in some males, or simple
(group pinguis) ; antennae 12-jointed in female, and in the male of
many species, although the normal number in this latter sex is 13 ;
flagellum subject to many modifications in the male, being entire,
emarginate or dentate beneath, or greatly dilated and fringed (group
largior) ; pronotum transverse, short, rounded or dentate laterally,
notched medially ; dorsulum convex, the parapsidal grooves usually
distinct, or represented by ridges; episternum mesopleuralis with a
very strong ridge anteriorly, sometimes extending on and bounding

NORTH AMERICAN IIYMENOPTERA.

135

anteriorly the mesosternum, and in some species entirely absent,
epimerum mesopleuralis separated from the episternum by a strong,
generally foveolated furrow, armed with a strong crest just anterior
to the medial coxae, which is sometimes represented simply by a small
pointed prominence (groups ventralis and hilaris), or is absent
(groups pinguis to pedicel lotus inch) ; middle segment marked by a
longitudinal central furrow and usually by a curved one which en¬
closes its upper surface, posterior face with or without a lateral ridge,
sides flat or depressed, divided sometimes by a medial, longitudinal
furrow. Legs in female simple, never very strongly spinose, in the
male subject to great variation, the fore trochanters being sometimes
spined, the fore femora simple, dentate at base beneath, armed with
a long spine beneath between base and middle, or flattened and
dilated basally, fore tibiae simple, or bearing a large vari-shaped
shield as in groups tenuiglossus and largior, fore tarsi simple, flat¬
tened, dilated, or distorted (group largior) ; medial tibiae with one
spur, first joint of medial tarsi simple, or having a peculiar form
and its length variable ; hind tarsi simple, the first joint, however,
varying in length in some cases; anterior wings consisting of a
median, submedian, a marginal, one cubital (submarginal) and
two discoidal cells, costal cell closed, the second discoidal is generally
much shorter than the first, although in some groups is of the same
length ; hind wings with a median and submedian cell, the latter
being much shorter than the former. Abdomen elongate, convex
above and beneath ; segments even, or contracted at base and apex
(group interruptus), the first segment varying from petiolate to
almost sessile ; in the petiolate form it is longitudinally furrowed at
base, and in the more sessile forms with a strong basal depression,
which is bounded outwardly by a ridge ; female only with a pygidial
enclosure, except in one group ( pinguis), the form of which varies —
sometimes broad, flat, again much contracted and deeply channeled ;
last dorsal segment of male with or without a medial furrow ; sculp¬
ture very variable.

1. Group interruptus.

The species of this group have the bodies, particularly the head
and thorax, very coarsely sculptured, being covered usually with
great, coarse punctures, which on the dorsulum, seutellum and meso-
pleurse are often interspersed with strong striae and the sides of the
middle segment are usually coarsely striated. The medial produced

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

136

WILLIAM J. FOX.

portion of the clypeus is longer and narrower than in any of the
succeeding groups having tire clypeus so shaped. In the male the
flagellum is not dentate or emarginate beneath, the fore femora are
armed with a tooth beneath near the base, the fore tarsi are slightly
flattened, but not broadened, and the first joint of medial tarsi is
somewhat enlarged near the base, giving the joint a somewhat sinn-
ated appearance.

1. Crabro ciuctellus n. sp.

9 . — Head strongly punctured, particularly on the front, the punctures closest
and finest behind the ocelli and on the cheeks ; pronotum very strongly developed,
larger by far than in any of the allied species and armed with a large tooth on
each side ; scutellnm more striated than punctured ; middle segment above with
coarse, longitudinal striations, the posterior face with transverse ones, sides
coarsely, but more evenly striated, upper surface separated from the posterior face
by a transverse series of large fovese ; fore and medial femora somewhat angular
beneath near the base; first dorsal abdominal segment with tolerably strong,
separated punctures, those on segments 2-5 finer and more even, second ventral
in the middle with large, sparse punctures. Black; scape, pedicel lum, pronotum,
tubercles, episternum mesopleuralis more or less, ^ small spot above on epimerum
mesopleuralis sometimes absent (as are likewise spots on metapleurae, upper and
posterior surfaces of middle segment), scutellnm with two dots, one on each side
just anterior to it, metanotum, hind coxae beneath, apex of trochanters, femora
except a black spot on upper surface of fore and medial femora at base and a dark
streak on posterior surface of hind pair, tibiae, tarsi (apical joints darker), a broad
band on dorsal abdominal segments 1-5, a spot on each side of the sixth, and
ventral segments 2-5, more or less, generally almost entirely, bright yellow ; pu¬
bescence of face and clypeus with a golden tinge. Wings subhyaline, with a
slight yellowish cast, the nervures and stigma pale testaceous. Length 9 10 mm.

Nevada. Four specimens labeled cinctellm Cress., evidently a
manuscript name. A handsome and striking species.

2. Crabro interrupt iim St. Farg. et Br.

Solenius interruptus St. Farg. et Brulle, Ann. Soc. Ent. Fr. iii (1834), p. 716, £>.

Crabro conjluentns Say, Bost. Journ. N. H. i, p. 376, 9 S •

Crabro clubius Smith, Cat. Hym. Brit. Mus. iv, p. 417.

Crabro conjiuentus Smith, ibid. p. 420.

Crabro interruptus Packard, Proc. Ent. Soc. Phila. vi. p. 74, % 9 ■

9 . — Head covered with coarse, separated, deep punctures, those between the
ocelli and occiput scarcely less coarse or closer than those of the front, the cheeks
also coarsely punctured ; pronotum not remarkably large, the lateral tooth small ;
scutellum marked by large punctures in addition to the striae ; middle segment as
described in cinctellm. Abdomen with strong, separated punctures, but less coarse
than those of the head. Black ; scape, pedicellum, spots on pronotum narrowly
separated, tubercles, line on scutellum and metanotum, that on the former some¬
times wanting, apex of femora, tibiae (sometimes darker internally), tarsi (apical
joints darker), an elongate, narrow spot on each side of dorsal segments 1-4, that
on segment 1 more or less sinuated, and a shorter and broader spot on each side

NORTH AMERICAN HYMENOPTERA.

137

of segment 5, yellow : no yellow on mesopleurse or ventral segments of abdomen ;
pubescence of face and clypeus silvery. Wings subhyaline, somewhat darker
apically, nervures and stigma testaceous. Length 8-11 mm.

% .—Coarsely sculptured like the female, but more strongly so; flagellum sub-
clavate, not widened basally ; pronotum rather strongly dentate laterally ; middle
segment very coarsely rugose, particularly above, the sides with coarse, more or
less irregular striations. Abdomen with one, more rarely with two or three ter¬
minal bauds. Length 8-10 mm.

Occurs from Canada to Florida Ash mead ) ; Illinois; Nebraska
(Barber) ; Colorado ; Montana. Probably our most common species,
and subject to some variation ; the spots on pronotum are sometimes
wanting and the femora are rarely yellow in greater part. A female
specimen from District of Columbia (Ashmead) has the pronotum
scarcely dentate as in producticollis, but is too coarsely sculptured
for that species. The smooth bodied specimen mentioned by Packard
is evidently a female of producticollis (= 4 -maculaius Prov. ).

3. C'rabro bell IIS Cress.

Crabro bellus Cresson, Proc. Ent. Sue. Phila., iv, p. 481, 9 .

C'rabro atrifrons Cresson, ibid. p. 483, % .

9 .—Head with strpng punctures, those between the ocelli and occiput, how¬
ever, close and confluent, those on the front large and sparse; thorax as in inter-
ruptus, but a little less coarsely sculptured ; abdomen distinctly punctured, but
more finely and closely punctured than in interruptus. Black ; scape, pedicellum,
two spots on pronotum, sometimes wanting, tubercles, scutellum and metanotum
sometimes (usually black, however), tips of femora more or less, tibiae except dark
spot internally, tarsi (apical joints darker), a long, narrow spot on each side of
dorsal abdominal segments 1 5, those on segment five nearly always united, and
those on segment one sinuous, all yellow; no yellow on mesopleurse or ventral
segments of abdomen ; pubescence of clypeus silvery ; wings subhyaline, rather
strongly tinged with yellow basally, particularly along the costa, nervures and
stigma yellowish testaceous. Length 9-11 mm.

% ■ — This sex differs from interruptus in the same characters as does the 9 : the
finer sculpture and in possessing one or two more terminal bauds on abdomen ;
wings darker than in the 9> and not yellowish; pronotum with a large tooth
laterally. Length (1-8.5 mm.

Colorado ; Nevada ; Mt. Hood, Oregon ; W ashington. Very
close to interrupt m, but more finely sculptured, and the spots on ab¬
dominal segments 4 and 5, at least on 5, united. The thorax is
usually sparsely spotted in both sexes, while in interruptus the usual
markings are present ; this is, however, variable in both species.
The width of the elypeal production varies and the medial lobe is
often armed with a strong tooth on each side of the medial process;
this character occurs also in the other species of the group but is less
developed.

TRANS. AM. ENT. SOC. XXII.

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138

WILLIAM J. FOX.

4. Crabro prodiidirollis Pack.

Crabro producticottis Packard, Proc. Ent. Soc. Pbila., vi, p. 76, .

Crabro i-punctntus Provancher, Hym. Quebec, p. 653.

Crabro A-maculatm Provancher (non Fabr.), ibid. p. 655, 9 •

9 • — Head covered with strong, even, distinctly separated punctures, sparse on
the cheeks and large and deep on the front ; pronotum not so sharply margined
as usual, the lateral tooth extremely small ; thorax, perhaps, a little less coarsely
sculptured than in the allied species; middle segment somewhat rugose, but not
coarsely, the not strongly, sometimes indistinctly striated, longitudinal central fur¬
row of upper surface rather broad, and the transverse series of fo ve:e well
marked; abdomen finely and closely, though distinctly punctured, strongly
glabrous in comparison to the other species of the group. Black ; scape, pedi-
cellum more or less, two spots on pronotum, tubercles, scutellum more or less
(rarely black), tips of femora, tibiae, sometimes dark internally, tarsi (apical joints
darker) and a spot on each side of dorsal abdominal segments 2-5, widely sepa¬
rated, and sometimes a much smaller spot on each side of segment 1, yellow;
pubescence of clypeus silvery; wings subliyaline, but little darker apically.
Length 8-11.5 mm.

^ . — Head with coarse punctures, those between the ocelli and occiput con¬
fluent; cheeks very sparsely punctured, polished; flagellum distinctly widened
near the base ; space between eyes at base of clypeus distinctly less tban that
between the hind ocelli, and less than in the allied species; thorax very coarsely
sculptured, scutellum longitudinally rugose ; middle segment covered with coarse
rug®, the sides coarsely striated ; fore femora with lower margin strongly angular
just beyond the middle, toothed near the base as usual ; first joint of medial
tarsi more strongly sinuous than in of interruptus and bellus ; abdomen but
little more strongly punctured than in the female; colored like the 9 . except
that the scape is dark posteriorly, the thorax excepting the tubercles is rarely
maculated, the spots on abdomen are longer and narrower and those on segments
5 and 6 form usually though not always, bands. Length 6-8.5 mm.

Canada (Harrington); New Hampshire (Mrs. Slosson); New
York; New Jersey; Illinois (Nason); Texas; Washington; Van¬
couver. A specimen from Illinois is more strongly sculptured than
usual, but still retains the shiny appearance, particularly of the ab¬
domen, which is a good superficial character in this species. Pro-
vancher’s C. 4 -punetatns, which the same author calls 4 -maeulatus
on p. 655 of his work, I unite with this species, as it is evidently the
female. This latter sex has also been given the name aciculatus
Cress, non Prov.), but Cresson never published a description of it.

2. Group montauus.

Differing from the preceding group by the less coarsely sculptured
bodies, the abdomen being very finely punctured. The dorsulum is
closely and not very coarsely striato-punctate, tending in the males
to rugose. Medial production of clypeus shorter and broader than

NORTH AMERICAN HYMENOPTERA.

139

in group confiuentus, Flagellum of £ with the first four joints
strongly contracted basally and produced at apex, the first and fourth
joints most strongly ; fore femora ( £ ) beneath at the base somewhat
enlarged, the fore tarsi are strongly flattened and broadened, the
first joint of medial tarsi variable in length and shape, but never
sinuous.

5. Crabro moiitaniis Cress.

Crabro montanus Cresson, Proc. Ent. Soc. Phila., iv, p. 484, 9 .

Crabro cri status Packard, ibid, vi, p. 101, .

Crabro cubiceps Packard (non Tasch.), ibid. p. 105, 9 •

Crabro effosus Provancher (non Pack.), Hym. Quebec, p. 660, £ (non J).

9 . — Space between eyes at base of clypeus about equal to the combined length
of joints of joints 1 and 2 of the flagellum ; pronotum sharply margined ante¬
riorly, distinctly furrowed in a transverse manner, with a rather large, sharp
lateral tooth ; dorsulum tolerably strongly striato-punctate on anterior portion,
posteriorly with separated punctures; scutellum sparsely punctured, striated behind,
mesopleurse rather strongly striated ; upper surface of middle segment separated
from the posterior face by a tolerably strong ridge, with strong, somewhat irreg¬
ular, but tolerably longitudinal, striae, the medial furrow not broad, posterior face
finely punctured, apically with some coarse, transverse striae, not ridged laterally,
sides delicately striated ; abdomen very finely punctured, the second ventral seg¬
ment with large, sparse punctures. Black ; mandibles basally, more or less,
greater part of scape, sometimes entirely, two spots on pronotum, tubercles, scu¬
tellum and metanotum in part very rarely, a small spot at tip of fore and medial
femora sometimes, tibiae externally more or less, and a spot at each side of dorsal
abdominal segments 1-5, yellow or whitish yellow, the spots on segment 1 very
small and sometimes wanting, those on segment 2 largest, those on segment 5 more
rounded and never uniting; tarsi black or dark testaceous. Length 7-10 mm.

£ . — Head rather strongly and closely punctured, the space between the eyes at
base of clypeus greater than in the 9 - but not greater than the combined length
of flagellum joints 1 and 2, as those joints are longer in the than in the 9 :
space between hind ocelli distinctly less than that between them and nearest eye-
margin ; head strongly margined posteriorly; pronotum large, very strongly
crested anteriorly, the lateral tooth large and sharp; dorsulum coarsely rugose
irregularly so on anterior portion, longitudinally posteriorly ; middle segment
more coarsely sculptured above than in the 9 • the posterior face coarsely trans¬
versely striated throughout, the sides coarsely striated also; first joint of medial
tarsi shorter than the three following joints united, distinctly dilated a little
beyond the middle, but again narrowed to apex, second joint strongly curved and
produced at apex within ; abdomen somewhat more distinctly punctured than in
the 9 ! colored and marked as in that sex. but differing in the following points :
metanotum yellow, fore femora with a yellow streak posteriorly, anteriorly more
or less reddish yellow, markings of the abdomen larger, more approximate, the
fifth and sixth segments banded. Length 6-7 mm.

Canada to New York; Illinois; Michigan (Davis); South Da¬
kota (Aldrich) ; Colorado; Nevada; Mt. Hood, Oregon; Washing-

TRANS. AM. ENT. SOC. XXII.

MAY, 1895.

140

WILLIAM J. FOX.

ton. C. cublceps, I unite with montanus us it differs only in the
color of the scape, a trivial character and in this species a variable
one. C. cristatm is without doubt the male of montanus. I have
examined over eighty specimens of this species mostly from the
West which indicates a common occurrence.

fi. Crabro atriceps Cress.

Crabro atriceps Cresson , 1. c., p. 483, 9 •

9 . — Space between the eyes at base of clypeus fully equal to the length of
joints 1 and 2 of the flagellum; pronotum not margined, the lateral tooth small
and blunt, transverse furrow indistinct; dorsulum anteriorly with very close
punctures, indistinctly interspersed with stria;, posteriorly the punctures less
close ; mesopleime rather coarsely and closely striated ; middle segment with the
ridge separating the upper surface from the posterior face indistinct, medial fur¬
row broad, distinctly widened at the middle, posterior face finely roughened or
rugose, without transverse striae apically and not ridged laterally, sides deli¬
cately striated ; abdomen finely punctured, but more distinctly than in montanus.
Black, including the mandibles and scape ; two spots on pronotum, tubercles, line
on metanotum, sometimes broken, or absent, spot at the apex of the four anterior
femora, sometimes wanting, a line on the outer side of tibiae, and an elongated
spot on each side of dorsal abdominal segments 2-5, those on segment 5 always
united, yellow ; no spots on the first segment; the tarsi black ; wings subhyaline
throughout, Length 7-9 mm.

. — Head with tolerably fine and close punctures, the hind margin not strongly
margined ; space between the hind ocelli scarcely less than that between them
and the nearest eye-margin ; pronotum larger than in the 9 > but smaller than in
the ^ of montanus, not very strongly crested and the lateral tooth short; central
furrow of medial segment even broader than in the female, the posterior face with
rather coarse transverse striations, sides strongly striated ; first joint of medial
tarsi about as long as the three following united, but slightly dilated medially,
the apex a little produced within, second joint strongly curved and produced at
apex within; abdomen distinctly punctured ; colored and marked as in the 9>
the abdominal markings, however, longer, narrow and more sinuous, and those
on segment four almost united. Length 7 mm.

Colorado. The uniting of the spots on fifth abdominal segment
and black color of scape are good superficial characters in separating
this from montanus. A £ specimen from Nevada, I refer with some
doubt to this species ; the abdominal spots are small and consequently
widely separated and the pronotum appears more sharply dentate.

7. Crabro brunneipes Pack.

Crabro brunneipes Packard, 1. c., p. 102, .

9 . — Space between the eyes at base of clypeus about equal to the length of
joints 1 and 2 of the flagellum ; pronotum margined, but not strongly so, the
lateral tooth small, transverse furrow distinct though narrow ; dorsulum ante¬
riorly rugoso-punetate, posteriorly with strong separated punctures, those on the
scutellum sparser; mesopleime coarsely striated ; middle segment with the ridge

NORTH AMERICAN HYMENOPTEEA.

141

separating the upper surface from the posterior face well developed, medial furrow
broadened, widened medially, upper surface much more coarsely striated than in
atriceps and the striae fewer, posterior face finely rugose, distinctly ridged laterally,
sides rather indistinctly striated : abdomen more finely punctured than in atriceps.
Black, including the mandibles: scape more or less, two small spots, widely sepa¬
rated, on pronotum, tubercles, metanotum, spot ou fore and medial femora at
apex, sometimes lacking, tibiae externally, sometimes the hind pair in greater
part, a large spot on each side of dorsal abdominal segments 2-5, more or less
pointed internally, except those on the fifth, which are truncate and always sepa¬
rated, yellow ; tarsi black , wings pale fusco-hyaline, nervures and stigma black.
Length 6.5-8 mm.

% . — Head finely and closely punctured, the hind margin tolerably well mar¬
gined ; space between hind ocelli apparently slightly greater than that between
them and the nearest eye-margin ; middle segment above coarsely rugose, poste¬
rior face with somewhat irregular, coarse, transverse striations, the lateral ridges
present but imperfectly developed, sides strongly striated; first joint of medial
tarsi about as long as the three following united, less dilated medially than in
atriceps , second joint curved and produced at apex ; abdomen punctured as in the
female ; colored and marked like the female, the spots on pronotum sometimes
absent, those on the abdomen smaller than in the other sex and always widely
separated. Length 6-7 mm.

M nine; New Hampshire; Pennsylvania; Illinois (Robertson);
South Dakota (Aldrich). The separated spots on fifth abdominal
segment, coarser sculpture and darker wings are points in which this
species differs from atriceps.

8. Crabro corrugatus Pack.

Crabro corrugatus Packard, 1. c., p. 107, 9 .

9- — Space between eyes at base of clypeus somewhat less than the combined
length of flagellum joints 1 and 2, the space between hind ocelli slightly greater
that between them and the nearest eye-margin ; pronotum with the transverse
impression broad, especially toward the sides, sides not deep, the lateral tooth
small and blunt; dorsulum finely striato-punctate, most closely anteriorly, scu-
tellum more coarsely so ; mesoplcuraj finely striato-punctate, more finely than the
posterior portion of the dorsulum ; middle segment above covered with very
coarse, irregular folds or rugae, whose strength varies, posterior face tolerably
well enclosed by a surrounding ridge, with coarse, transverse striations on apical
portion, sides finely, though distinctly striated : abdomen very finely and closely
punctured. Black; large spot on mandibles basally, scape entirely or in part,
large spots on pronotum, tubercles, metanotum, tips of femora more or less, tibiae
entirely or spotted internally, sometimes the first tarsal joint in part, and large
spot at each side of dorsal abdominal segments 2 5, those on the latter separated
sometimes very nearly united, though usually well separated, yellow ; tarsi testa¬
ceous; wings subhyaline, a little darker apically, nervures and stigma testaceous.
Length 6-7 mm.

% . — Head strongly and sharply margined posteriorly ; pronotum broadly fur¬
rowed as in the 9 > middle segment with the ridge enclosing posterior face very
strong, the latter with coarse, transverse striations throughout, sides rather

TRANS. AM. ENT. SOC. XXII.

MAY. 1895.

142

WILLIAM J. FOX.

coarsely striated ; first joint of medial tarsi longer than the three following joints
united, the second joint as usual, strongly produced at apex ; colored and marked
like the 9 , the fore femora, however, streaked with yellow posteriorly and red¬
dish yellow, in front; spots on abdomen smaller and widely separated. Length
5 mm.

Canada (Harrington) ; New York ; Virginia. The width of the
space between eyes at base of clypeus, broad impression of pronotum,
distinctly striated scutellum, finer sculpture of dorsulum, etc., dis¬
tinguish this species from the preceding ones.

9. t'rabro pamiliis Pack.

Crabro parvulus Packard, 1. c., p. 108, 9 •

9 . — Space between the eyes at base of clypeus but little less than the length
of flagellum joints 1 and 2 united, the space between the hind ocelli somewhat
greater than that between them and nearest eye-margin ; transverse furrow of
pronotum not very broad, but deep; dorsulum finely striato-punctate ; scutellum
sparsely punctured, the striae confined to the sides and posterior portion ; middle
segment above with strong, but not coarse, oblique striae, posterior face not dis¬
tinctly enclosed, the Surrounding ridge weak, with coarse transverse striations on
apical portion, sides delicately striated : abdomen finely and closely punctured.
Black, the thorax except tubercles, rarely spotted ; spot on mandibles basally,
scape in part, tubercles, spots on pronotum and metanotum rarely, tips of fore and
medial femora slightly, sometimes, line on tibiae externally, and a spot at each
side of dorsal abdominal segments 2 5, all widely separated, yellowish ; tarsi tes¬
taceous; wings subhyaline, nervures and stigma testaceous. Length 6-7 mm.

% . — Occiput distinctly, though not very strongly margined posteriorly ; pro¬
notum furrowed as in the 9 - dorsulum punctato-striate ; scutellum striato-punc¬
tate throughout; middle segment much more coarsely striated than in the 9>
particularly above and on the sides, the posterior face covered with coarse, trans¬
verse strife, distinctly enclosed, the surrounding ridge, however, less strongly
developed than in the % of corrugatus ; first joint of medial tarsi distinctly lon¬
ger than the three following united, the second joint curved and produced as
usual ; mandibles, and much the greater part of medial and hind tibise black ;
thorax, except tubercles, very rarely maculated ; abdominal markings smaller than
in the 9 j fore femora with a line posteriorly, yellow. Length 5 6 mm.

South Dakota. (Aldrich) ; Colorado ; Nevada ; Mt. Hood, Oregon ;
Washington. Distinguished from corrugatus by the differently fur¬
rowed pronotum, finer sculpture of middle segment, color of tibiae
and rarely maculated thorax. The head is more closely punctured
in the % in this species than in corrugatus and pauper.

10. t’rabro pauper Pack.

Crabro pauper Packard, 1. c., p. 95, % .

. — Joints 1-3 of flagellum more strongly produced beneath than in the other
species of the group ; occiput distinctly, though not very strongly margined pos¬
teriorly, less strongly than the cheeks; transverse furrow of pronotum broader
than in parvulus , narrower than in corrugatus : dorsulum and scutellum rather

NORTH AMERICAN HYMENOPTERA.

143

finely striato-punctate throughout ; middle segment above coarsely and irregu¬
larly rugulose, posterior with coarse transverse striations, tolerably well enclosed,
the surrounding ridge, however, not as well developed as in corrugatus %, ; first
joint of medial tarsi not much longer than the following three united, the second
joint as usual; abdomen longer than the head and thorax, finely and closely
punctured. Black, including the mandibles; scape in part, two spots on pronotum,
tubercles, line on metanotum, sometimes wanting, greater part of anterior portion
of femora, and a line posteriorly, tips of medial pair, tibise except a variable spot
internally, and a spot on each side of dorsal abdominal segments 2 6, yellow.
Length 7 mm.

Maine (Packard); Virginia. In the more strongly produced
basal joints of the flagellum this species approaches those of the
following group. It is a more elongate species than corrugatus, and
the enclosing ridge of posterior face is feebler.

3. Group nigrifrons.

Body finely sculptured, particularly the abdomen, which is indis¬
tinctly punctured ; dorsulum finely and closely striato-punctate,
tending to closely punctured in the males ; mesopleurse delicately
and closely striated ; medial production of elypeus distinct, in the
males more so than in those of the preceding group ; flagellum of
2 with joints 1 and 2, or 1-4 very strongly produced or toothed
beneath, joints 1 and 2 solidified forming one long joint ; fore femora
( £> ) not enlarged or produced at the base beneath, fore tarsi not
flattened, the first joint of medial tarsi armed within near the apex
with a tooth or spine ; last dorsal segment ( % ) not furrowed as
usual ; pubescence of front and elypeus ( 9 ) golden, silvery in the
males.

11. Crabro obscurus Sm.

Crabro obscurus Smith, Cat. Hym. Brit. Mus., iv, p. 418, 9 h •

Crabro denticulatus Packard, 1. c., p. 97, % .

Crabro obscurus Packard, ibid. p. 99, 9 •

Crabro effosus Packard, ibid. p. 104, 1, .

Crabro effosus Provancher, Hym. Queb., p. 660, 9 (non

9 . — Head fiueiy and closely punctured, first joint of flagellum fully as long as
the three following united ; space between hind ocelli about equal to that between
them and nearest eye-margin ; dorsulum fiueiy and closely striato-punctate, the
scutellum more sparsely so ; mesopleurse more distinctly striated than the dor¬
sulum ; upper surface of middle segment with coarse, somewhat oblique striations
aud separated from the posterior face by a series of strong, transverse fovea, its
central furrow broad aud transversely ridged, posterior face finely rugose, trans¬
versely and more coarsely so on apical portion, rather distinctly ridged laterally,
sides with tolerably coarse striations. Black ; large spot on mandibles, scape en¬
tirely, base of pedicellum, two spots on pronotum, tubercles, metanotum, scutellum

TRANS. AM. ENT. SOC. XXII.

MAY, 1895.

144

WILLIAM J. FOX.

sometimes, tips of fore and medial femora, tibiae, except apex of hind pair and
an inconstant dark spot on other pairs, tarsi (apical joints darker) and a long,
narrow, somewhat sinuous spot on dorsal abdominal segments 2-5, yellow, the
spots on segment five usually united ; first segment rarely spotted, tegulae entirely
testaceous. Length 8-9 mm.

% . — First two joints of flagellum strongly dentate beneath, the third and
fourth joints indistinctly so, the combined length of joints 1 and 2 as great as
that of the following four joints united ; head more strongly punctured than in
the female; dorsulum closely and rather strongly punctured, somewhat granular
in appearance; middle segment sculptured as in the 9, but more coarsely, in
some specimens the upper and posterior faces are coarsely rugose, central furrow
variable, in some specimens absent, or indistinct ; marked and colored about as
in the 9' the pedicellum and mandibles black. Length 6-7 mm.

Hudson Bay (Smith); Canada; New Hampshire; Connecticut
(Norton); New York; New Jersey; Pennsylvania; District of
Columbia; Virginia; Louisiana; Illinois and Michigan (Gillette).
Three females I refer here with some doubt ; they are smaller 6-7
nun., and the space between the hind ocelli distinctly greater than
that between them and nearest eye-margin. The C. obscurus de¬
scribed by Provancher is evidently a % chrysarginus ; and the S
described by the same author under the name effosus I take to be %
of montanus (= cristatus). Packard’s denticulatus is evidently the
% of obscurus, and his effosus simply an abnormal form of the first
mentioned species.

12. C’rabro gracilissiintiM Pack.

Crabro contiguus Cresson (in part), 1. c., p. 484, 9*

Cralrro grocUisshnus Packard, 1. c., p. 78, % .

9 .- — Differs from that of obscurus as follows : dorsulum and seutellum a little
more strongly sculptured ; mesopleune less finely striated ; upper surface of mid¬
dle segment with distinct, though not coarse, irregular striatious, not separated
from the posterior face by fovea*, lateral ridges of posterior face feebly ridged,
sides finely striated ; colored similarly to obscurus, the metanotal spot usually
wanting, although sometimes present: abdominal spots variable, all united or
nearly so in some individuals and others with the first segment maculated ; teguke
with a yellow dot anteriorly ; pedicellum entirely black. Length 8 11 mm.

% .—This sex is very close to that of obscurus : the sculpture of middle segment
is not so coarse, the transverse series of fovea* separating the upper surface from
the posterior face is narrower and not quite so strong, and the lateral ridges of
posterior face are scarcely developed : the abdominal markings vary as in the 9 ,
and the spot on the tegula* is not always present. Length 6-8 mm.

South Dakota (Aldrich); Colorado; Nevada; California; Mt.
Hood, Oregon ; Washington. The color of the markings varies
from pale to deep yellow. Cresson confused the female of this spe¬
cies with C. contiguus ; this is shown by the types of that species.

NORTH AMERICAN HYMENOPTERA.

145

13. Crabro n igri Irons Cress.

Orabro advena (in part) Smith, Cat. Hym. Brit. Mus., iv, 421, % (non 9 ).

Crabro nigrifrons Cresson, Proc. Ent. Soc. Pliila., iv, 482, % .

Crabro contigims Cresson, ibid. p. 484, 9

9 • — Head finely and closely punctured ; first joint of flagellum scarcely as
long as the three following ones united ; frontal impressed line distinct; dorsulum
and scutelluin finely and closely striato-punctate ; mesopleune very finely and
closely striated, rather subtilely so; middle segment above with not very strong
longitudinal striations, the central furrow long and narrow, upper surface not
separated from posterior face by foveae, posterior face delicately and transversely
striated, without any trace of lateral ridges, sides delicately striated. Black ;
large spot on mandibles, scape entirely, pedicellum in part, two variable spots on
pronotum, tubercles, spot on scutellum and metanotum sometimes, although these
parts usually not spotted, tips of fore and medial femora more or less, and tips of
hind pair sometimes, tibiae except a dark spot internally, tarsi except apical joints
and a long narrow spot on each side of dorsal abdominal segments 2-4, those on
segment 4 united, yellow; the abdominal spots in rare cases, all united in bands,
or nearly so, in which event the spots are broader and the first segment spotted ;
tegulae entirely testaceous. Length 11-12 mm.

% . — First four joints of flagellum armed with a large tooth beneath, the com¬
bined length of the first two joints not greater than the length of the following
three joints united ; dorsulum more strongly sculptured than in the 9 , appearing
granulated anteriorly ; middle segment with the sculpture coarser than in the
other sex, central furrow broader, and the upper and posterior faces separated by
fovea;, posterior face rather coarsely and transversely striated, and with poorly
developed lateral ridges, sides not so coarsely striated as the posterior face ; first
joint of medial tarsi more strongly toothed or spined internally than in obscurus
and gracilissimus. Black, including the mandibles ; scape with a black spot poste¬
riorly ; thorax marked as in the 9 1 fore femora and tibife in front and the me¬
dial femora in part, rufous, the femora (except the hind pair) otherwise black
and yellow ; medial and hind tibiae yellow externally, black within ; flagellum
beneath, tegulae entirely and tarsi, except anteriors, testaceous ; abdominal spots
as in the 9 , but of course an additional pair, and the first segment spotted.
Length 9-11 mm.

Occurs from Canada to New York, westward to California and
Washington ; Colorado ; Nevada. The 9 specimens having the
abdominal spots united into bands have a yellow spot on the epister-
nuin mesopleuralis, not evident in the other forms ; they are from
California and Nevada.

4. Group sexmaculatus.

The three species contained in this group differ from all those pre¬
ceding by the medial portion of clypeus being rounded anteriorly,
and not produced into a truncated process ; abdomen indistinctly
punctured or impunctate ; pygidium with a lateral fringe of long,
thick hair; mesopleune rather coarsely striato-punctate; flagellum

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146

WILLIAM J. FOX.

of males with the fourth joint strongly emarginate beneath ; fore
tarsi f % ) distinctly flattened; and first joint of medial tarsi at the
most strongly produced at apex within.

14. Crabro sexmaculatus Say.

Crabro 6-macitlatus Say, Keating’s Narr. Exp. St. Peter’s River, ii, Appendix,
p. 341, 9.

Crabro sexmaculatus Packard, 1. c., p. 91, 9 1) •

9 . — Head with distinct punctures, closest anteriorly, tolerably well separated
behind the ocelli ; space between the hind ocelli about equal to that between them
and the nearest eye-margin ; lateral tooth of pronotum small, indistinct ; dorsulum
rather coarsely and closely punctured, the punctures on posterior portion but little
or not at all sparser than those on anterior; punctures of scutellum sparser;
mesopleuree coarsely striato-punctate ; middle segment above and posteriorly with
tolerably fine stria;, sides delicately striated, no trace of foveas between the upper
and posterior faces, the latter not at all ridged at the sides. Black ; spot on man¬
dibles, scape entirely or in part, two variable spots on pronotum, tubercles, line
on metanotum, scutellum in part sometimes, tips of femora in some cases, tibise
except a spot within, first joint of tarsi, an elongated spot on each side of dorsal
segments 2, 4 and 5, the third segment sometimes spotted and in some specimens the
spots on segment 5 are united, yellow or pale yellow ; size of spots on third seg¬
ment, when present, variable ; head, thorax and first segment of abdomen with
tolerably long and conspicuous pubescence; wings subhyaline, somewhat darker
apically. Length 9-12 mm.

'J, . — More coarsely sculptured than in the 9 i fi rst joint of flagellum distinctly
longer than the second ; middle segment with the upper surface and posterior
face separated by distinct fovese, posterior face transversely rugose, the lateral
ridges indistinct, but bounded outwardly by a foveolated furrow ; first and second
joints of medial tarsi strongly produced at apex within, almost spinose; colored
and marked like the 9 > with the following additions : fore femora and tibiae
reddish anteriorly, otherwise yellow and black ; first abdominal segment some¬
times spotted and with the spots on the other segments are in some cases united.
Length 8-10 mm.

Occurs from Canada to Delaware (Packard), westward to Cali¬
fornia and Washington, and is, perhaps, our commonest species.
Say mentions a yellow spot as occurring on the pleurae beneath the
wings ; this is not present in any of the 59 9 specimens before me ;
a large series of the £ also fails to disclose it. It may be that this
is not Say’s species, but his description is too insufficient to reach a
decision.

15. Crabro trifasciatus Say.

Crabro trifasciatus Say, Keating’s Narr. Exp. St. Peter’s River, ii, Appendix,
p. 342.

Crabro trifasciatus Packard, 1. c., p. 93, 'S 9 •

9.— Very close to sexmaculatus, though somewhat smaller; punctures of dor¬
sulum tolerably well separated on posterior portion ; upper surface of middle
segment separated from the posterior face by a rather distinct series of fovese,

NORTH AMERICAN PIYMENOPTERA.

147

rather strongly striato-punctate, posterior face rugose, indistinctly ridged laterally,
sides finely striated ; colored and marked as in sexmaculatus, but apparently not
subject to such variation of the abdominal markings ; third segment spotted
usually, more rarely immaculate. Length 8-9 mm.

% . — First joint of flagellum but little longer than the second ; middle segment
coarsely rugose, particularly above, the transverse series of fovea; separating the
upper surface from posterior face stronger than in the 9 : first and second joints
of medial tarsi scarcely produced at, apex within ; colored and marked like the
9 ; fore and medial femora black and yellow, not or very obscurely, reddish;
abdomen usually with three terminal bands, the third segment always spotted.
Length 6-9 mm.

Canada; Maine (Packard); Massachusetts; New Hampshire;
New York ; New Jersey ; Custer, South Dakota (Aldrich) ; Colo¬
rado. The % resembles greatly that of C. odyneroides, but the
abdomen is indistinctly punctured.

16. C’rabro paiicimaculatus Pack.

Crabro pcmcimacidatus Packard, Proc. Ent. Soc. Pliila., iv, p. 90. 9 •

9- — Head above with tolerably fine, even punctures, closer in front; space
between hind ocelli about equal to that between them and nearest eye-margin ;
pronotum not dentate laterally ; dorsulum closely and rugosely punctured, poste¬
riorly, however, a little less strongly; scutellum with strong, separated punctures;
mesopleune rugoso-striate ; middle segment rugoso-punctate, more rugose on
posterior face, the latter ridged at the sides, but not strongly, and separated from
the upper surface by a tolerably distinct ridge, which is not, however, always
present, sides finely striated ; first abdominal segment narrower than in sexmacu¬
latus and trifasciatus. Black ; mandibles except apex, scape in part, two spots on
pronotum, sometimes wanting, tubercles, variable spot on metauotum, fore and
medial tibiae externally, hind pair except a spot within and at apex outwardly,
basal portion of first joint of fore and medial tarsi sometimes, a short, more or
less ovate spot at each side of dorsal segments 2 and 4 and dot on segment 5 later¬
ally, yellow; tarsi and tegulse blackish; wings fusco-hyaline, paler basally, uer-
vures and stigma black ; head, thorax and first segment of abdomen not conspicu¬
ously hirsute. Length 7-8 mm.

Illinois; New Jersey in July; District of Columbia; Jacksonville,
Florida (Ashmead). This species approaches the following group
by the paucity of hair on the pygidial segment. The abdomen is
indistinctly punctured, however.

o. Group amber.

The species forming this group are distinguished by the distinctly
punctured abdomen, particularly the first segment, and by the females
lacking the coarse lateral fringe of hair on pygidial segment. Male
with the flagellum as in sexmaculatus group ; fore tarsi not flattened ;
middle segment, at least the posterior face, in % , laterally, with
strong fovea.', differing in this respect from the males of group chrys-

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

WILLIAM J. FOX.

148

arginus. Head in both sexes with strong, separated punctures, ex¬
cept in one case ; sculpture of thorax in both sexes coarser than in
the allied groups.

17. Crabro stirpicolus Pack.

Crabro stirpicola Packard, 1. c., p. Ill, ^

9 . — Head with tolerably strong, separated punctures, close on the front, how¬
ever; pronotum indistinctly dentate at the sides; dorsulum rugose-punctate ante¬
riorly, on posterior portion the punctures well separated ; scutellum with large,
separated punctures ; mesopleune with large, scattered punctures, interspersed
with coarse striae ; middle segment above and behind coarsely striated, posterior
face with lateral ridges scarcely developed, sides indistinctly striated. Black :
spot on mandibles, scape, two spots on pronotum, tubercles, episternum meso-
pleuralis in part sometimes, line on scutellum and metanotum either or both of
which may be entirely black, tips of femora, tibiae entirely, or with a dark spot
within, basal joint of tarsi and an elongated spot on each side of dorsal abdominal
segments 2, 4 and 5, yellow ; third segment sometimes spotted, and in one speci¬
men the second segment only is spotted; apical tarsal joints testaceous; wings
dark subhyaline, paler basallv. Length 5 7 mm.

^ . — Head more strongly punctured than in the female ; pronotum indistinctly
dentate at the sides ; dorsulum and mesopleune more coarsely sculptured than in
the female; middle segment above coarsely rugose, less so on posterior face, the
latter separated from the upper surface by a distinct ridge, and ridged indistinctly
at the sides, sides strongly striated ; colored and marked as in the 9 • Length
5-6 mm.

Canada ( Provancher) ; New York ; New Jersey in August; Illi¬
nois; Michigan (Davis); West Point, Nebraska (Barber); Texas.
It is said to make its nests in the stems of raspberry.

18. Crabro spiniferus n. sp.

9 . — Head rather finely and closely punctured, more so in front, very strongly
margined posteriorly; pronotum armed with a long, sharp, tooth or spine on each
side; dorsulum coarsely punctured, closely so on anterior portion, posteriorly the
punctures separated ; scutellum with large, sparse punctures ; mesopleune coarsely
and closely striato-punctate ; middle segment closely striato-punctate above and
behind, much less coarsely so than the mesopleune, posterior face with lateral
ridges wanting, sides delicately striated ; abdomen closely and rather finely,
though distinctly punctured. Black ; large spot on mandibles, scape except a
spot posteriorly, pronotum, slightly interrupted! medially, tubercles, line on scu¬
tellum and metanotum, either of which or both may be wanting, tips of femora
more or less, tibue except a line within and apex of hind pair, first joint of tarsi
except apex, and a large spot at each side of dorsal abdominal segments 2-5, yel¬
low; apical tarsal joints blackish; wings subhyaline, paler basally. Length 7 8
mm.

^ . — Head closely punctured, hut a little, more strongly than in the 9 ! pro¬
notum strongly crested, sharply spinose laterally : middle segment with the upper
surface separated from the posterior face by a series of strong fo'vem, posterior
face transversely rugose, indistinctly ridged laterally, sides strongly striated ;
colored and marked as in the 9 - except that the scutellum and metanotum are
rarely spotted and the abdominal markings longer and narrower. Length 6-7 mm.

NORTH AMERICAN HYMENOPTERA.

149

Washington ; Southern California (O. B. Johnson and D. W.
Coquillett) ; Nevada ; Arizona ; Colorado. Easily distinguished by
the strong spine with which the pronotum is armed on each side.

19. Crab ro rufipes St. F. et Br.

Ceratocolus rufipes St. Farg. et Brulle, Arm. Soc. Ent. Fr. iii (1834), p. 741, 9 •

Crdbro rufipes Smith, Cat. Hym. Brit. Mus., iv, p. 418.

Crabro excavatus Fox, Ent. News, iii, p. 10, 9 ^> •

9- — Head with large, separated punctures, closer in front; space between the
eyes at base of clypeus somewhat less than the width of the latter in the middle :
space between bind ocelli about equal to or slightly greater than that between
them and the nearest eye-margin ; pronotum not dentate laterally ; dorsulum
rugosely punctured, sparsest posteriorly ; meso pleurae not as coarsely striato-
punctate as in scaber ; middle segment above coarsely and closely punctured,
posteriorly more or less rugose, sides coriaceous, indistinctly striated ; first and
second dorsal segments with large, separated punctures, those on the first strongest,
the punctures finer and closer on the other segments; second ventral segment
with the punctures less scattered and not as strong as in scaber. Black ; mandibles
except apex, scape, pedicellum, first joint of flagellum more or less, pronotum
narrowly interrupted medially, tubercles, episternum mesopleuralis in part, scu-
tellum, metanotum, fore and medial femora and tibiae in part sometimes, and a
spot at each side of dorsal abdominal segments 1-5, yellow ; the abdominal spots
variable : that on the first segment sometimes wanting and the others greatly
reduced in size, or the spots on segment 5 may be united into a band ; legs in
greater part, including the trochanters sometimes, entirely rufous, and the first
and second segments of abdomen frequently suffused with that color. Length
8-9 mm.

% . — Resembles greatly that of scaber, but the front is less coarsely and more
closely punctured, the punctures being more or less confluent ; space between eyes
at base of clypeus distinctly greater than the width of the latter in the middle ;
thorax about as in scaber; first joint of medial tarsi not curved; punctures of
second ventral segment finer and closer than those of the first dorsal ; colored
like the 9 • Length 9 mm.

Carolina (St. Fargeau) ; Georgia; St. Augustine (Johnson) and
Jacksonville (Ashmead), Florida. St. Fargeau gives the color of
the legs of this species as black, but this must be a mistake, or he
would not have named it rufipes.

20. Crabro scaber St. F. et Br.

Solenius scaber Lepelitier de Saint Fargeau et Brulle, Ann. Soc. Ent. Fr.
iii (1834), p. 715, % .

Crabro scaber Smith, Cat. Hym. Brit. Mus., iv, p. 418.

Crabro scaber Packard, 1. c., p. 114, 9 •

9 .■ — Head with strong, much separated punctures, closest in front ; space be¬
tween the eyes at base of clypeus equal to the width of the latter in the middle;
space between hind ocelli less than that between them and the nearest eye-margin ;
pronotum distinctly margined above, but very indistinctly dentate at the sides ;
dorsulum rugosely punctured, sparsest posteriorly ; mesopleune coarsely striato-
punctate ; middle segment above coarsely and closely punctured, the posterior

TRANS. AM. ENT. SOC. XXII.

JUNE. 1895.

150

WILLIAM J. FOX.

face with coarse rugse laterally forming large fovea;, which are more evident in
some specimens than in others, sides coriaceous; first and second dorsal segments
of abdomen with large, separated punctures, those on the first strongest, segments
3-5 with the punctures finer and closer ; second ventral with large, scattered
punctures. Black; an elongated spot on the mandibles within near the base,
scape, pedicellum, and sometimes two or three basal joints of the flagellum, pro-
notum, tubercles, metanotum, sometimes apex of femora and tibiae in part, a
broad band on dorsal abdominal segment 2, and a much narrower one on segments
3-5, frequently interrupted, broken into spots, or else wanting on one or more
segments, yellow; legs, including the trochanters in part or entirely, rufous;
wings subfuscous, pale basally. Length 9-10 mm.

% . — Sculptured like the J , but more coarsely, and the front with large sepa¬
rated punctures like the top of head ; space between the eyes at base of c.lypeus
slightly less than the width of the latter in the middle ; space between hind
ocelli about equal to that between them and the nearest eye-margin ; pronotum
strongly margined, with a large, blunt lateral tooth ; middle segment with a
transverse series of fovese separating the upper surface from the posterior face,
sides coarsely striated ; first joint of medial tarsi rather strongly curved ; punc¬
tures of second ventral segment finer and closer than those of the fii'st dorsal ;
colored and marked like the 9 j the first segment sometimes reddish. Length
8 mm.

Philadelphia (Lepelitier) ; Camden County, New Jersey, in July;
Georgia ; Texas.

21. Craforo texanus Cress.

Crabro texanus Cresson, Trans. Am. Ent. Soc., iv, p. 227, 9 •

9. — Head with strong, much separated punctures, which are closest in front;
frontal impressed line present: space between hind ocelli less than that between
them and nearest eye-margin, the space between eyes at base of clypeus at least
as great as the width of the latter in the middle ; pronotum distinctly keeled
above, longer than in centralis, and with a small lateral tooth ; dorsulum coarsely
punctured, rugosely so anteriorly ; mesopleurse rugosely punctato-striate, or rather
rugosely punctured, the episternal suture tolerably well foveolated ; middle seg¬
ment rugoso-puuctate, on the sides coriaceous ; abdomen above with strong, sepa¬
rated punctures, strongest on first segment ; second ventral punctured similarly
to the first dorsal. Black ; large spot on mandibles near base, scape, pedicellum
and sometimes part of first joint of flagellum, pronotum, tubercles, scutellum,
metanotum, apical third of femora, tibiae, tarsi, a band on dorsal abdominal seg¬
ments 2, 4 and 5, and a dot at each side of segment 3, yellow ; head above except¬
ing a sparse, erect pubescence, not pilose ; wings subfuscous, pale at base. Length
6-7.5 mm.

% . — Colored and marked like the 9 - which it greatly resembles, but there is
no yellow on episternum mesopleuralis and third dorsal abdominal segment; and
in this sex the sculpture is coarser; middle segment with a series of large fovem
dividing the upper surface from posterior face, the sides distinctly striated ; space
between eyes at base of clypeus distinctly greater than the width of the latter in
the middle ; first joint of medial tarsi scarcely curved ; second ventral abdominal
segment more finely and closely punctured than the first dorsal. Length 6 mm.

Texas; Carlinville, Illinois (Robertson).

NORTH AMERICAN HYMENOPTERA.

151

22. Crabro centralis Cam.

Crabro centralis Cameron, Biol. Cent.-Amer., Hym. ii, p. 146. Tab. ix, figs.

6. 6m, b, 9 'J) .

9 . — Head with strong, even punctures, which are closest and finer posteriorly,
frontal impressed line wanting, space between hind ocelli less than that between
them and the nearest eye-margin, the space between eyes at base of clypeus
slightly greater than the width of the latter in the middle; pronotum distinctly
crested above, armed with a small, though distinct tooth on each side; dorsulum
more coarsely punctured than the head, closely so on anterior portion ; mesopleurse
coarsely striato-punctate, the episternal suture not distinctly foveolate, being
crossed by a few ridges; middle segment above rugoso-punctate, but not very
coarsely, the posterior face marked by strong transverse folds or ridges, sides
rather strongly striated, less distinctly so medially ; first segment of abdomen
with large, separated punctures, the second segment more closely and finely punc¬
tured, and segments 3-5 even more closely, second ventral with coarse, scattered
punctures. Black including the tarsi ; small spot on mandibles on inner margin,
greater part of scape, pronotum, tubercles, metanotum more or less, a line on outer
side of tibiae, a band on dorsal abdominal segments 2-5, sixth segment entirely,
and ventrals 2-5 narrowly at apex, yellow ; a rufous streak on hind femora above ;
head above clothed with a dense, brownish pile ; wings subhyaline, darker apically,
with a strong yellow streak along the costa; abdomen with silvery sericeous pile.
Length 10 mm.

Mexico; Guatemala and Panama (Cameron); Las Cruces, New
Mexico (Cockerell). The only specimen before me seems to agree with
Cameron’s description of centralis, but the abdomen is strongly punc¬
tured, and not finely as stated by Cameron. However, the meaning
of fineness and coarseness is no doubt viewed differently by various
authors. I have not seen the $ , and Cameron does not mention it in
his description, although giving figures of the genitalia and antennae.
It is difficult to imagine why that author compares centralis to his
guerrerensis, which, judging from the figure, belongs to a widely
separated group.

6. Group decemmaculatus.

Distinguished chiefly by the l flagellum being entire, not dentate
or emarginate ; the fore tarsi are not flattened ; abdomen distinctly
punctured ; pygidium with a distinct lateral fringe ; head closely
and finely punctured. The females offer no characters by which
they may be separated from those of the chrysarginus group.

23. Crabro decemmaculatus Say.

Crabro 10-macidatus Say, West. Quart. Rep., ii, p. 78 ; Compl. Writ, i, p. 167.

Crabro coUinus Smith, Cat. Hym. B. M., iv, p. 420, .

Crabro aurifrons Smith, ibid. p. 420, 9 •

Crabro 10 -maculatus Packard, 1. c., p. 79, 9 •

Crabro aurifrons Packard (uec Smith), ibid. p. 80, ^ (non 9 )•

9. — Head with the punctures distinct, more separated than in Packardii; first

JUNE. 1895.

TRANS. AM. ENT. SOC. XXII.

152

WILLIAM J. FOX.

joint of flagellum, if anything, slightly shorter than the length of the two fol¬
lowing joints united ; pronotum not so sharply keeled as in the species mentioned
above, the lateral tooth small, scarcely developed ; dorsulum with large punctures,
sparsest posteriorly ; scutellum with large punctures ; mesopleurse strongly punc-
tato-striate. the episternal suture marked hy rather strong foveae ; middle segment
covered with coarse punctures, sparsest on upper surface, sides indistinctly
striated ; abdomen distinctly punctured, particularly on the first dorsal segment;
ventral segment 2 closely and finely punctured laterally, in the middle with
large, sparse punctures. Black ; mandibles except apex, scape, pedicellum, base
of first joint of flagellum, pronotum, tubercles, episternum mesopleuralis in part
(this spot sometimes wanting), scutellum anteriorly and two small spots, one on
each side just anterior to it, metanotum, apical portion of femora, tibiae, tarsi
except apical joints, a large spot on each side of dorsal abdominal segments 1-5,
those on the fourth and fifth sometimes uniting within, those on segment 2 usually
broadest, yellow ; basal portion of femora generally reddish, sometimes tending
to black, and again the femora are almost entirely reddish ; first abdominal seg¬
ment sometimes more or less rufous; wings subhyaline, darkest apically, on basal
portion faintly yellow. Length 13-15 mm.

'J, . — -Space between eyes at base of clypeus less than the width of the latter in
the middle; thorax more coarsely sculptured than in the 2? particularly the
middle segment, which is rugoso-punctate on posterior face, and the sides are
coarsely striated ; fore trochanters beneath produced into a sharp spine ; abdomen
more strongly punctured than in 9 ; colored and marked, like the 9 > hut very
variable: the yellow is frequently wanting on episternum mesopleuralis and scu¬
tellum; the tibiae and tarsi are sometimes almost entirely reddish, and in one
specimen there are no spots on the thorax and abdomen, except on pronotum and
tubercles; often the second, or second and third ventral segments have a small
lateral yellow spot, and the bands (usually three) on segments 4-6 are sometimes
broken. Length 10-12 mm.

Massachusetts (Packard) south to Florida and Texas; Colorado.
Smith’s aar if roiis is identical with this species. I also unite the auri-
frons of Packard with it, the description of which, said to be based
on a 9 agrees with % specimens ; thus it seems to me that the un¬
usual form of the 1 antennae in this specie^ has deceived Packard,
leading him to suppose his specimen was 2 when really of the other
sex. The atirifrons and collinus are surely synonymous with the
above, judging from the descriptions, and this view is strengthened
by the fact that Say’s 10-maculatas is not included in the list of the
species published by Smith.

24. Crabro I*aeltar«lii Cress.

Crabro Packardii Cresson, 1. c., p. 477, 9 (non 'J,).

9- — Head finely and closely punctured ; space between bind ocelli less than
that between them and nearest eye-margin, the space between eyes at base of
clypeus somewhat greater than the width of the latter in the middle ; first joint
of flagellum, if anything, slightly longer than the two following united ; pronotum
strongly keeled, the lateral tooth not large, though strong and distinct ; dorsulum

NORTH AMERICAN HYMENOPTERA.

153

very closely punctured, more coarsely so than the head ; mesopleurae tolerably
coarsely striato-punctate, the episternal suture rather strongly foveolate ; middle
segment finely striated, delicately so on the sides; abdomen finely punctured, the
second ventral with scattered punctures. Black ; mandibles except tips, scape,
pe'dicellum beneath and sometimes part of the first joint, pronotum almost en¬
tirely above, tubercles, episternum mesopleuralis in part, scutellum anteriorly,
two small spots, one on each side just anterior to it, metauotum, an elongato-ovate
spot, sometimes wanting, on each side of the middle segment posteriorly, femora
except their base and hind portion of posterior pair, tibije, tarsi except last two
or three joints, two spots on the first dorsal abdominal segment, frequently form¬
ing a band, longer spots on second and third segments pointed internally, also
united sometimes, a hand on segments 4 and 5, a spot on each side of the pygidial
segment and the ventral segments to a greater or less degree, bright yellow ; pu¬
bescence of front and clypeus silvery, with a slight golden tinge in some speci¬
mens ; wings with a strong yellow tinge on basal two-tliirds. Length 11-13 mm.

£ . — Head very closely punctured ; space between eyes at base of clypeus dis¬
tinctly greater than the width of the latter in the middle ; thorax more coarsely
sculptured than in the 9 , particularly the middle segment, whose upper surface
is rugoso-punctate, posterior face strongly punctured, the punctures interspersed
with a few striae, sides coarsely striated ; fore trochanters unarmed ; abdomen a
little more distinctly punctured than in the 9 i marked the same, but in the
specimens before me all the dorsal segments are banded, the two apical ones and
all the ventrals except the first being entirely yellow; wings yellower and pu¬
bescence of front and clypeus golden. Length 11-12 mm.

Colorado; Nevada; California; Mt. Hood, Oregon; Washington.
The 9 can only be distinguished from that of chrysarginus by its
richer livery and particularly by the ventral segments of abdomen
being maculated. The space between the eyes at base of clypeus is
somewhat greater in comparison to width of clypeus than in chrys¬
arginus, and the form is usually more robust. The yellow on each
side of middle segment is peculiar to the species, but cannot be relied
on because of inconstancy. The % of this species as described by
Cresson is referable to that of chrysarginus.

1 . Group chrysarginus.

The females of this group connot be distinguished from the de-
cemmaculatus group. The males differ by the flagellum having the
fourth joint emarginate and produced at apex beneath ; fore tarsi
not distinctly flattened.

25. C’rabro odynoroules Cress.

Crabro odyneroides Cresson, 1. c., p. 481, % .

9 . — Head scarcely narrowed posteriorly, rather strongly punctured, very
closely so on the front, which appears finely granulated ; ocelli forming a low
triangle, lower than in chrysarginus, the space between the hind pair distinctly
less than that between them and the nearest eye-margin ; first joint of flagellum

(20)

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

154

WILLIAM J. FOX.

distinctly shorter than the following two united, about one-fourth longer than
the second joint; lateral tooth of pronotum small and indistinct; dorsulum com¬
pactly punctured or apparently strongly granulated : scutellum with strong, dis¬
tinct punctures; mesopleurse strongly punctato-striate, the punctures most promi¬
nent, the episternal suture scarcely foveolate ; middle segment above with tolerably
tine striations, posterior face sculptured somewhat similarly to the mesopleurse,
but more coarsely and the striae are less evident, sides delicately striated ; abdo¬
men distinctly punctured, the first dorsal segment strongly so, the remaining
dorsal segments finely and closely ; second ventral rather strongly punctured,
sparsely in the middle. Black ; mandibles except outer margin and apex, scape,
two spots on pronotum almost touching internally, tubercles, line on metanotum,
extreme tips of fore and medial femora, tibiae except a line within, tarsi, either
entirely or in part, a long narrow mark on each side of dorsal abdominal segment
2, almost touching within, a small spot at each extreme side of segment 3, and a
band on segments 4 and 5, that on the fourth sometimes interrupted medially, as
are likewise the spots on segment 2 connected, yellow : head and thorax with
tolerably dense, grayish hair; wings subhyaline. Length 10-11 mm.

^ . — Head rather coarsely punctured ; space between hind ocelli much less than
that between them and nearest eye-margin ; first joint of flagellum much shorter
the combined length of the following two joints united, about one-fourth longer
than the second joint, four basal joints together about one-fourth longer than the
six terminal ones united: lateral tooth of pronotum stronger than in the 9> the
dorsulum more coarsely sculptured; middle segment above coarsely punctato-
striate, the sides more coarsely striated than in the other sex ; fore femora beneath
at base not produced; first two joints of medial tarsi not curved, only slightly
produced apically, the first joint distinctly longer than the three following united ;
abdomen punctured as in the 9 > colored and spotted the same, sometimes the
small spots on segment 3 of abdomen are drawn out and almost touch within, and
the lines on segment 2 are unusually united ; wings paler. Length 8 mm.

Colorado ; Montana.

26. Crabro imbutus Fox.

Crabro imbutus Fox. Proc. Calif. Acad. (2), iv, p. 108, 9 •

cp . — Head finely punctured, but more distinctly so than in chrysarginus : frontal
impressed line almost obsolete above ; ocelli forming a curved line, the space be¬
tween the hind pair less than that between them and the nearest eye-margin :
first joint of flagellum scarcely as long as the two following joints united ; pro¬
notum strongly dentate at the sides; dorsulum with strong punctures, those on
posterior portion rather well separated, those of the scutellum even more so;
mesopleune rather coarsely striato-punctate, the episternal suture not foveolate;
middle segment rather coarsely striated, the sides delicately so; abdomen with
dorsal segments 2 5 finely and closely punctured, the first segment strongly punc¬
tured, the abdomen throughout much more distinctly punctured than in chrysar¬
ginus. Black ; mandibles except apex and outer margin, scape, pedicellum more
or less, pronotum entirely, tubercles, episternum mesopleuralis more or less, scu¬
tellum in part sometimes, a spot on each side just anterior to it, metanotum, fore
femora beneath and sometimes the apex of remaining pairs, tibise entirely or in
part, basal joints of tarsi, a peculiar, somewhat drepaniform spot on each side
of first dorsal abdominal segment, large wedge-shaped marks on second, some-

NORTH AMERICAN IIYMENOPTERA.

155

times connected, thus forming a band, broad band on dorsal segments d o, tbe
sixth on each side of pygidium. and a band on venti'als 2 5, that on the second
and fifth irregular, bright yellow; legs excepting the coloration noted, reddish,
including the trochanters ; front and medial part of clypeus with golden pubes¬
cence ; basal two-thirds of wings yellow, fuscous on remainder. Length 13-14 mm.

^ . — First joint of flagellum not nearly as long as the two following joints
united, the four basal joints united about as long as the six terminal ones com¬
bined ; dorsulum coarsely punctured ; middle segment more coarsely striated
than in the 9 , particularly the sides ; fore femora not at all produced at base
beneath ; first and second joints of middle tarsi slightly curved, produced at
apex, the first somewhat longer than the following two combined ; abdomen dis¬
tinctly punctured, the first dorsal segment strongly so, the second ventral finely
and closely ; colored like the 9 , except that no spot is present on epimerum
mesopleuralis and first abdominal segment, and the baud on second segment is
sometimes narrower and irregular. Length 11-12 mm.

Lower California ; Arizona ; Colorado. Easily distinguished by
the position of ocelli, sculpture and coloration.

27. Crabro cbrysargimis St. F. and Br.

Crabro chrysarginus Lepeletier de St. Fargeau et Brulle, Ann Soc. Ent. Fr.,
iii, p. 711, 9 •

Crabro arcuatus Say, Bost. Journ. Nat. Hist., i, p. 37 1 .

Crabro chrysargurus Dahlbohm. Hym. Eur., i, p. 386.

Crabro Packardii Cresson (in pt.), 1. c., p. 477.

Crabro honestus Cresson, ibid. p. 485, % .

Crabro chrysarginus Packard, 1. c., p. 82, 9 •

Crabro villosifrons Packard, ibid. p. 83, 9 •

£ . _ Head very finely and closely punctured : frontal impressed line faint ;

space between hind ocelli somewhat less than that between them and the nearest
eye-margin ; first joint of flagellum fully as long as the two following joints
united ; space between the eyes at the base of clypeus not greater than the width
of the latter in the middle; lateral tooth of pronotum rather small; dorsulum
compactly punctured, a little more coarsely so than the head, the scutellum some¬
what more sparsely; mesopleune tolerably coarsely striato-punetate, the punctures
more distinct in some specimens than in others, the episternal suture rather
strongly foveolate; middle segment finely striated, delicately so on the sides; ab¬
domen dor sally very finely and closely punctured, including the first dorsal seg¬
ment, the second ventral with larger, scattered punctures. Black ; mandibles
except apex and outer margin, scape, two spots on pronotum. tubercles, episternum
mesopleuralis more or less, scutellum in part or not at all, a spot at each side of
it anteriorly, metanotum, femora apically to a greater or less extent, tibiae entirely
or with a dark spot within, tarsi except apical joints, a spot at each side of the
first dorsal segment broadest internally, spot at each side of segments 2 and 3,
that on the latter segment narrowest, and a band on segments 4 and 5, that on
the fourth sometimes broken medially, yellow; silvery pubescence of clypeus
sometimes pertaining to golden on medial portion ; wings dark subhyaline, ner-
vures and stigma testaceous. Length 11-14 mm.

\ .—Head more distinctly punctured than in the 9 5 ocelli forming a low
triangle, the space between the hind pair less than that between them and the

June, 1895.

TRANS. AM. ENT. SOC. XXII.

156

WILLIAM J. FOX.

nearest eye-margin ; first joint of flagellum about as long as the two following
joints united, the four basal joints combined nearly twice as long as the six apical
joints united ; lateral tooth of pronotum stronger than in the female; dorsulum
more strongly punctured; middle segment coarsely striated, distinctly so on the
sides; fore femora somewhat produced at base beneath; first and second joints
of medial tarsi slightly curved and produced at apex-, the first joint a little longer
than the following two united ; punctures of the abdomen distinct, particularly
those on the first dorsal segment, the second ventral sparsely punctured ; marked
similarly to the 9 , except that the scutellum is black and the abdominal mark¬
ings are narrower ; scape sometimes with a black spot; pubescence of front and
clypeus silvery; wings paler than in the 9 ■ Length 8-12 mm.

Occurs from Canada to Florida and through the Western States
to Washington, except those in the southwest on the Border. Pack¬
ard, in his description of the female, states, “ second and third joints
next to terminal one of flagellum being dentate.” This statement
is erroneous, as I have examined some of his examples. The fact
of the sex being female would discredit his assertion. That author
also, on page 84 of his work, in speaking of arcuatus, remarks that
“Say, in his description, does not mention the sex of the specimens
before him, but they must have been 9 •” This cannot be, inasmuch
as we find the following in Say’s description, “ sixth joint [of an-
tennse] arcuated, a little prominent inwardly at tip;” this is dis¬
tinctly a male characteristic. The males described by Cresson as
those of Packardii are identical with this species. C. honestus Cres¬
son, differs only in lacking the thoracic markings.

8. Group mififemur.

This group is characterized chiefly by the broad, triangular, non-
excavated pygidium of the 9 , and by the fore tarsi of the l being-
flattened and rather broadly dilated. The thorax is coarsely sculp¬
tured in both sexes and the abdomen distinctly punctured. In the
% the fourth joint of the flagellum curved and has the appearance
of being strongly emarginate beneath, this joint is also somewhat
produced at apex beneath and the first, second and third joints are
more or less contracted basally beneath.

28. Crahro dilectus Cress.

Crabro dilectus Cresson, Proc. Ent. Soc. Phila., iv, p. 478. 9 ^ •

9 . — Head, a little more finely and closely punctured than in bigeminus, the
space between bind ocelli about equal to that between them and the nearest eye-
margin ; dorsulum rather finely and closely punctured, closer than in bigeminus;
mesopleune coarsely striato-punctate ; middle segment rather finely striated above
and behind, the sides veiy delicately striated ; abdomen finely and tolerably
closely punctured, the first segment most distinctly so; pygidium slightly de-

NORTH AMERICAN HYMENOPTERA.

157

pressed on apical portion. Black ; maculated as in bigeminus, but with whitish
and each tibia has a dark spot within, the femora are black except their apices,
and there are no spots on middle segment ; wings subhyaline throughout. Length
11-13 mm.

'k . — Differs from the ^ of bigeminus only in its finer sculpture, particularly of
the abdomen, by the pale ornation, the presence of a dark spot on tibiae within
and by dorsal abdominal segments 2-5 having a broad band. Length 7-12 mm.
Colorado; South Dakota (Aldrich) ; Montana; Washington.

29. Crabro bigeminus Patt.

Crabro bigeminus Patton, Can. Ent., xi, p. 213. % 9 •

9 . — Head rather finely punctured, smaller than rufifemur , frontal impressed
line tolerably distinct; ocelli as usual, the space between the hind pair somewhat
less than that between them and the nearest eye-margin ; pronotum strongly
margined anteriorly, subdentate laterally ; dorsulum with rather close, strong
punctures, much less coarse than in rufifemur, and are most compact ante¬
riorly ; scutellum punctured about like the posterior portion of dorsulum ;
mesopleune tolerably coarsely striato-punctate, but less so than in rufifemur;
mesopleurse with the medial furrow narrow, not deep, tolerably coarsely striato-
punctate, the striae usually distinct above, and particularly on posterior face,
where they are transverse, lateral ridges wanting, sides delicately striated ;
abdomen distinctly punctured, particularly the first dorsal segment, the second
ventral very sparsely punctured ; pygidium somewhat longer than in villosus and
rufifemur , slightly depressed on apical portion. Black: mandibles except apex,
scape, two large spots on pronotum, tubercles, episternum mesopleuralis more or
less, two small spots just anterior to the scutellum, which is rarely colored, meta-
notum, a large spot on the posterior face of middle segment laterally, extending
on the sides somewhat, femora above and beneath on apical portion, tibia}, tarsi,
except one or two apical joints, spots one at each side of abdominal segments 1-3,
those on segment 1 shortest, on segment 3 longest and narrowest and pointed
within, whereas those on the first two segments are obtuse, and a band on segments
4 and 5, yellow; femora, in part, rufous and black; silvery pubescence on rneso-
sternum rather prominent ; wings subhyaline, slightly darker apically, nervures
and stigma testaceous. Length 12-14 mm.

% . — Space between hind ocelli distinctly less than that between them and
nearest eye-margin ; punctures of head stronger and not as close as in the 9 ;
pronotum strongly dentate laterally ; dorsulum with rather coarse, separated
punctures; mesopleurse coarsely striato-punctate ; sides of middle segment strongly
striated ; first joint of medial tarsi shorter than the following two united, not
produced at apex, the outer margin strongly angular, the second joint a little
produced at apex and slightly curved ; abdomen strongly punctured, particularly
the first and second dorsal segments, the remaining dorsal segments more finely
and closely punctured ; colored like the female, but the femora less black, and the
abdominal markings narrower. Length 12 mm.

Massachusetts ; Connecticut (Patton) ; New Jersey ; Delaware ;
Georgia. Distinguished from rufifemur by the less coarse sculpture
and form of first medial tarsal joint; from dilectus it differs by the
darker markings, greater extent of yellow and rufous on the femora,
coarser sculpture of abdomen, etc.

TRANS. AM. ENT. SOC. XXII.

JUNE. 1895.

158

WILLIAM J. FOX.

30. Crabro rullfcimir Pack.

Crabro rufifemur Packard, 1. c., p. 81, % 9 •

9 . — Head large, Dot lower than usual when seen from the front, strongly pro¬
duced behind the eyes, with tolerably close and coarse punctures, closest and
finest in front : impressed line extending from fore ocellus to the frontal depres¬
sion tolerably distinct; ocelli as usual, the space, between hind pair less than that
between them and the nearest eye-margin-; pronotum strongly margined ante¬
riorly, subangular laterally ; dorsulum with coarse punctures, closest anteriorly ;
scutellum more sparsely and less coarsely punctured ; mesopleurse coarsely striato-
punctate throughout ; middle segment with the medial furrow narrow, not deep,
closely punctato-striate, above the striae rather indistinct, on posterior face stronger
and transverse, lateral ridges not developed, sides almost smooth, though evi¬
dently delicately striated, the upper ridge not very strong ; abdomen distinctly
punctured, the first dorsal segment rather coarsely so, second ventral with large
separated punctures. Black; mandibles except apex, scape, two large spots on
pronotum, tegulae, scutellum more or less, and a small lateral spot just anterior
to it, metanotum more or less, femora above in part, tibise, tarsi (the apical joints
darker), spot on each side of abdominal segments 1-3, those on segments 1 and 2
shortest, broadest and more or less obtuse within, those on the third segment long,
narrow, pointed internally, and a band on segments 4 and 5, yellow ; the femora
are in part also rufous and sometimes are entirely of that color and yellow ; tro¬
chanters sometimes rufous or yellowish ; head and thorax scarcely pubescent ;
wings paler than in rillosus, nervures and stigma testaceous. Length 10-13 mm.

. — Very much like the 9 . but more coarsely sculptured, particularly the
abdomen ; first joint of medial tarsi as long, or longer than the following two
united, slightly produced at apex, not at all angular; second joint more strongly
produced at apex, somewhat curved ; colored as in the other sex, but no spots on
scutellum, and the abdominal marks narrower. Length 8-11 mm.

Illinois, westward to Montana, south to Nebraska ; eastward to
Massachusetts, south to New Jersey, north to Canada. I have re¬
ceived this apparently common species from most of my correspon¬
dents. Its geographic distribution is no doubt greater than the
material at hand indicates.

31. Crabro villosus n. sp.

9 . — Head low, when seen from the front, strongly transverse, but little
produced behind the eyes, with very close, tolerably coarse punctures, or the sculp¬
ture particularly that of the front may be described as granulated; impressed
line extending from fore ocellus to frontal depression indistinct ; hind ocelli placed
behind an imaginary line drawn across the vertex from the outer orbit of one
eye to the other, the space between them not quite as great as that separating
them from the eye-margin ; pronotum not margined anteriorly, but transversely
furrowed, at the sides rounded ; dorsulum with tolerably coarse punctures, which
are closest anteriorly ; scutellum sparsely punctured ; mesopleurse coarsely striato-
punctate, sparsely so on lower portion of epimerum ; middle segment with the
medial furrow broad and deep, above with rather coarse striations curving some¬
what to the sides, the posterior face roughened and punctured, lateral ridges well
developed, sides less rough than the posterior face, somewhat striated, bounded
above by a strong ridge, which does not reach the posterior face : abdomen not

NORTH AMERICAN HYMEN OPT E R A .

159

distinctly punctured, except the pygidium, which has large, coarse punctures, the
first segment short and more transverse than in the other species of the group.
Black ; mandibles, except apex, clypeus except fore margin, scape, pronotum,
tubercles, scutellum and metanotum more or less, femora at tips and on the fore
and medial pairs beneath in part, tibire except a spot within on anterior aud hind
pair and a spot at apex of latter, tarsi, band on first segment of abdomen, large
maculations on the second, third and fourth segments almost touching internally,
those on second broadest and truncate within, the others more pointed internally,
a hand on fifth segment, and ventral segments 2-5 almost entirely, yellow ; head
and thorax clothed with rather dense, shaggy, pale fuscous hair ; wings subhy¬
aline, darker apically, the marginal cell not much broader medially than at apex,
and not or scarcely angular beneath, in consequence of which the submarginal
cell is not narrowed at apex as in the allied species. Length 11 mm.

California. A very distinct species.

9. Group dngularis.

The three species constituting this group are easily distinguished
by the peculiar striation of the dorsulum — anteriorly it runs trans¬
versely, posteriorly is longitudial. The pygidium in 9 is strongly
depressed or excavated on apical portion, and is greatly narrowed at
that point, and the pygidial segment basally is furnished on each
side with long, stiff, hairs. In the S the first joint of flagellum is
much slenderer than the remaining joints, the point of junction with
the second joint being consequently well defined, the latter joint is
also somewhat irregular ; fore femora beneath armed with a strong
spine, which projects backward ; fore tarsi flattened, but scarcely
broadened.

32. Crabro singiilaris Sm.

Crabro singularis Smith, Cat. Hym. Brit. Mus., iv, p. 417, % .

Crabro quadrangularis Packard, 1. c., p. 85, 9 •

Crabro singularis Packard, ibid. ]>. 86, 'J, 9 •

Crabro li-maculatus Packard, ibid. p. 87, % .

9 . — Head large, almost quadrate, finely and closely punctured, very closely so
in front; space between eyes at base of clypeus somewhat greater than the width
of the latter in the middle ; first joint of flagellum distinctly longer than the
two following united ; pronotum strongly furrowed on each side, dentate laterally,
punctate; meso- and metapleurae, coarsely striated, the sides of middle segment
with the striae fewer and coarser; middle segment above with the enclosure usu¬
ally well marked, with coarse, longitudinal striae, the central furrow foveolate,
posterior face with irregular rugae, the lateral ridges not at all developed. Black,
mandibles except apex, scape entirely or in part, two spots on pronotum, tuber¬
cles, scutellum more or less, sometimes not at all spotted, sometimes the tips of
fore and medial femora, tibia; except within, first joint of tarsi, a long narrow
spot, pointed internally, on each side of abdominal segments 2-5, and sometimes
a small spot on each side of segments 1 and 6, yellow ; no silvery pubescence on

june, 1895.

TEANS. AM. ENT. SOC. XXXI.

160

WILLIAM J. FOX.

cheeks; wings pale fusco-hyaline, paler basally, a dark cloud at apex of marginal
cell. Length 13-16 mm.

^ . — Head greatly narrowed posteriorly, deeply excavated in front, finely punc¬
tured above, not or indistinctly striated ; pronotum narrower than the occipital
margin of the head, broadly but not deeply furrowed on each side, strongly den¬
tate laterally : middle segment more coarsely sculptured than in the 9 , coarsely
and irregularly rugose above ; fore femora with a long, spine beneath, which
points backward, the fore tarsi flattened but not broadened ; no yellow on scutel-
lum; fore femora and tibiae entirely, medial femora above, base of middle tibiae
on outer side, hind tibiae except apex, yellow ; abdomen spotted as in the 9 > but
an additional spot sometimes on the seventh segment laterally ; cheeks beneath,
fore femora and mesosternum with long, rather dense, white hair; form slender.
Length 9-14 mm.

Canada; Maine; New Hampshire; Massachusetts; Connecticut;
New Jersey; Pennsylvania; Louisiana; Illinois. C. quadrangu-
laris seems to differ only in its larger size, and C. 14-maculatus in
having two additional spots on abdomen. As the size and number of
spots are variable I place these two species as synonyms of singularis.

33. Crabro trapezoideus Pack.

Crabro trapesoideus Packard, 1. c., p. 89, % .

% . — Head above rather coarsely striato-punctate, not as long or narrowed as
much posteriorly as in the ^ of singularis; pronotum strongly furrowed on each
side, as broad as the occipital margin of the head, the lateral tooth not well de¬
veloped ; striae of mesopleurae and sides of middle segment closer and somewhat
coarser than in the species mentioned above, the middle segment above and behind
coarsely rugose ; fore legs as in singularis. Black : mandibles, except tips, scape
entirely, pedicellum in part, pronotum almost entirely, tubercles, scutellum ante¬
riorly, fore legs entirely, medial legs (except the coxae, trochanters, base of femora
beneath and apical joints of tarsi), hind femora above, tibiae except apex, and
first joint of tarsi, and a spot on each side of abdominal segments 2-6, yellow;
dense, white hair on the cheeks beneath, mesosternum and fore femora ; wings
subhyaline, but little darker apically, darkest in marginal cell and beyond.
Length 11 mm.

Illinois. Resembles closely the % of singularis, but is distinguished
by the coarse striation of head above, form of pronotum and spotted
scutellum. Appears to be rare, as I have only seen the unique type.

34. Crabro aciculatus Prov.

Crabro aciculatus Provancher, Hym. Quebec, p. 664, 9 •

9 . — Head shorter and more transverse than in 9 singularis, finely and more
closely punctured ; space between eyes at base of clypeus somewhat less than the
width of the latter in the middle; first joint of flagellum distinctly shorter than
the two following united, but little longer than the second joint; pronotum not
strongly furrowed, not dentate laterally, transversely striated ; meso- and meta-
pleurae coarsely striated, the sides of the middle segment, however, smooth, or
else indistinctly striated, above with longitudinal striae, between which are punc¬
tures, posterior face transversely striated, particularly on apical portion, the lateral

NORTH AMERICAN HYMENOPTERA.

161

ridges distinct, though not strong. Black, including the scutellum ; mandibles
except tips, scape entirely, two spots on pronotum, tubercles in part, extreme tip
of fore femora, and medial tibiae except within, hind tibiae entirely, first joint of
tarsi, large spot on each side of abdominal segment 2, broadest internally, nar¬
rower spot on segments 3 and 4 pointed within and a broad band on segment 5,
yellow; silvery pubescence in the usual situations including the cheeks; wings
subhyaline throughout, with exception of a slightly darker spot at tip of marginal
cell. Length 13 mm.

Canada ; Illinois. A less robust species than singularis, with
smaller head, striated pronotum and short first joint of flagellum.
This species seems to be closely allied to, if not identical with C.
frigidus Smith. I have not seen the £ , which Provancher describes
as follows : “ Scape black, with a yellow line anteriorly ; thorax not
at all maculated, except a large yellow spot on tubercles. Abdomen
elongate, with a broad yellow band at the base of fifth segment, the
sixth entirely yellow.”

10. Group largior.

Pygidium ( 9 ) broad, flat, not excavated ; first joint of hind tarsi
distinctly longer than the longer spur of bind tibiae ; £ flagellum
distinctly dilated or expanded; fore tibiae of same sex bearing a
large vari-shaped shield, the fifth joint of fore tarsi bearing a peculiar
appendage.

35. Crabro largior n. sp.

9 .—Head finely punctured, very closely so in front ; space between hind ocelli
a little less than that between them and the nearest eye-margin ; anterior margin
of clypeus not dentate ; pronotum not margined anteriorly, armed with a small,
blunt, tooth laterally ; dorsulum with tolerably coarse, more or less separated,
punctures ; mesopleurje punctured similarly to the dorsulum, but more sparsely
above with indistinct striations; middle segment above striated about as in mon-
t.icola. but less coarsely, and tends to rugose, basally however, are some heavily
marked ridges or strife, which become gradually obsolete, the posterior face striato-
punctate, its lateral ridges poorly developed extending only about half way to
upper surface, sides more or less striated. Black ; mandibles and clypeus more
or less, sometimes entirely black, scape entirely or with a spot posteriorly, two
large spots on pronotum, tubercles, scutellum more or less, tips of the femora,
tibiae except a spot within, tarsi (the apical joints darker however), a sinuous
spot on each side of the first dorsal abdominal segment, broader spot at each side
of second and third, a broad band on fourth and fifth and irregular lateral spot
ou second, third and sometimes the fourth ventral segments, yellow; head and
thorax with tolerably long, shaggy and dense, pale fuscous pubescence not short
or stiff on dorsulum ; wings subhyaline, with a yellowish tinge, darker apically,
with a fuscous cloud at apex of marginal cell. Length 13-15 mm.

. — This sex resembles that of pleuralis, but differs as follows : space between
hind ocelli but little less than that between them and nearest eye-margin ; four

TRANS. AM. ENT. SOC. XXII.

(21)

JUNE, 1895.

162

WILLIAM J. FOX.

apical joints of flagellum scarcely longer than the four preceding joints united,
the two penultimate joints not longer than hroad ; pronotum with a poorly de¬
veloped ridge anteriorly, the lateral tooth smaller; epimerum mesopleuralis with
large, sparse, punctures, only striated above; middle segment less coarsely sculp¬
tured: first joint of medial tarsi longer by about one-fifth than the remaining
joints united ; anterior femora at base of outer margin with a short, sharp pro¬
duction ; tibial shield smaller than in pleuraMs, and scarcely as acute at apex, in
color, the greater part black, basallv greenish, with broken streaks of yellow, first
joint of fore tarsi longer than the remaining joints united ; anterior trochanters
and femora in part, tubercles and scutellum sometimes black ; a lateral yellow
spot sometimes on fourth ventral segment: mesosternum with long, sparse, pale
pubescence; first joint of fore tarsi black ; wings subhyaline, tinged with yellow.
Length 11-13 mm.

Nevada ; Colorado ; Texas ; Montana. The markings of the ab¬
domen are much heavier than in the two following species.

3(5. C'rabro plcinalis n. sp.

9 . — Head finely and indistinctly striato-punctate above, in front distinctly
striated ; space between hind ocelli less than that between them and the nearest
eye-margin ; anterior margin of clypeus with a large blunt tooth on each side ;
pronotum not margined anteriorly, the lateral tooth small, but sharp and distinct ;
dorsulum with exceedingly compact punctures, rather granulated than punctured ;
mesopleurse striated, most distinctly above, the stria* interspersed with punctures
on lower portion; middle segment with tolerably fine, even, longitudinal stria-
tions, the medial furrow rather narrow, posterior face transversely striated, lateral
ridges tolerably well developed, sides striated, the strength of the striae variable.
Black, including tubercles; mandibles except apical third, clypeus more or less
(sometimes almost entirely black), scape except spot posteriorly, two spots on
pronotum almost touching medially, scutellum anteriorly, femora narrowly at
tips, tibia; except spot within, tarsi entirely, the apical joints, however, darker,
two sinuated spots on first abdominal segment, touching internally, an elongate
spot on each side of segments 2 and 3, obtuse internally, a band on segments 4
and 5, an irregular spot on each side of ventrals 2 aud 3, yellow ; head with the
pubescence about as in monticola, that on the dorsulum short and stiff’; wings sub¬
hyaline, slightly darker apically, nervures and stigma paler than in the species
mentioned. Length 12-13 mm.

^ . — Head coarsely striato-punctate, above ; cheeks strongly depressed and
ridged beneath near the eye-margin ; space between hind ocelli much less than
between them and the nearest eye-margin ; flagellum broadest at the fourth
joint, narrowed from that point to the apex, the first joint with a bunch of pale
hair beneath, four apical joints distinctly longer than the four preceding joints
united, the two penultimate joints longer than broad; pronotum not margined
anteriorly, but very strongly dentate laterally ; dorsulum coarsely and compactly
punctured, the mesopleurse coarsely striato-punctate, their episternal furrow rather
strongly foveolate; middle segment above more coarsely and irregularly striated
than in the 9 > the sides and posterior face much more so than in that sex, lateral
ridges of posterior face well developed; first joint of medial tarsi but little if
anything longer than the remaining joints united ; anterior femora at the base
of outer margin with a large, somewhat bifurcated, production ; tibial shield large,
shaped about as in pallidus, in color : basally yellow, posteriorly greenish, streaked

NORTH AMERICAN HYMENOPTERA.

163

and dotted with yellow; first joint of fore tarsi about as long as the remaining
joints united ; anterior trochanters beneath and femora entirely yellow ; colored
otherwise as in 9 > the apical tarsal joints, however, testaceous, markings of ab¬
domen narrower, a band on sixth dorsal and lateral spot on third ventral ; wings
somewhat darker than in 9 > the cloud at apex of marginal cell darker ; meso-
sternum with long, sparse, pale fuscous hair. Length 14 mm.

Vancouver ; Washington : Seattle (O. B. Johnson) ; Colorado.
The female may be distinguished from that of monticola and largior
by its sculpture, particularly that of the head and mesopleurse ; the
S by the greater combined length of the four apical joints of flagel¬
lum, the lesser space between hind ocelli and paler markings of tibia!
shield.

4

37. Crabro montieoliis Pack.

Thyreopus monticola Packard, 1. c., p. 367, 9 •

Crabro monticola Kohl, 1. c., p. 585.

9 . — Head finely and closely punctured more coarsely so auteriorly ; space
between hind ocelli a little less than that between them and nearest eye-margin ;
pronotum very slightly margined anteriorly, the lateral tooth not strong ; dor-
sulum with rather strong punctures, well separated posteriorly, anteriorly close ;
epimerum mesopleuralis more sparsely punctured, t lie episternal suture strongly
foveolate: middle segment above with longitudinal, more or less irregular, ridges
or coarse strife, which swerve somewhat towards the sides, the medial furrow
broad, posterior face transversely rugose on apical portion, the lateral ridges but
tolerably developed, the sides indistinctly striated. Black, including clypeus ; a
minute dot on mandibles near base, scape except spot posteriorly, two spots on
pronotum, tubercles, scutellum anteriorly more or less, tibife except spot within
and hind pair at apex, first joint of tarsi, a sinuous spot on each side of the first
abdominal segment, wedge-shaped spot, pointed internally on each side of second,
narrower spots or lines on third and fourth also pointed within, a band on seg¬
ment five emarginate on each side anteriorly, and irregular spots on second ven¬
tral segment yellow ; head and thorax with a tolerably thick and long, pale fus¬
cous pubescence : wings fusco-hyaline, paler basally, nervures and stigma dark
testaceous. Length 13-14 mm.

New Hampshire (Packard); Canada (Provancher) ; Virginia;
Georgia.

38. Crabro pallidas n. sp.

9 . — Head finely and closely punctured, in front more strongly and in addition
indistinctly striated ; space between hind ocelli about equal to or slightly less than
that between them and nearest eye-margin ; space between eyes at base of clypeus
greater than the width of the clypeus in the middle, the anterior margin of the
latter subtruncate, slightly produced medially, the lateral angles sharp but scarcely
dentate; pronotum not ridged anteriorly, obtusely dentate at the sides; dorsulum
with strong, scattered punctures, those on mesopleurse finer and sparser, episternal
suture with the fovese not strongly marked, though present; middle segment
above with a somewhat triangular depression, less marked in some specimens
than in others, covered with strong strise curving toward the sides, posterior face

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

164

WILLIAM J. FOX.

less strongly and transversely striated, the strength of the lateral ridges gradually
diminishing toward the upper surface, sides somewhat coriaceous. Black ; man¬
dibles and clypeus except their apices, scape, pedicellum in part, pronotum, tuber¬
cles, scutellum, metanotum. tips of femora, tibhe, except a spot within, first joint
of tarsi, hand on first abdominal segment, large spots on second and third barely
touching within, band on fourth and fifth and irregular spots on ventrals 2-5,
those on segment 2 largest and sometimes touching, whitish ; wings pale subhya¬
line, dusky at apex, nervures and stigma pale testaceous; pubescence of head
and thorax whitish silvery in the usual situations. Length 8-10 mm.

% . — Head coarsely and closely punctured, the cheeks striated as in argus, but
indistinctly, strongly depressed, though but slightly produced posteriorly, appar¬
ently not ridged beneath ; anterior margin of clypeus strongly dentate laterally,
emarginate medially or incurved ; flagellum broadest at about the fourth joint,
narrowed from that point to the apex, first joint broadened to meet the second,
with a prominent hunch of pale hairs beneath, four apical joints about as long as
the four preceding ones united ; thorax more coarsely sculptured than in the 2 •
the pronotal teeth stronger ; first joint of medial tarsi scarcely longer than the
remaining joints united ; fore femora in shape triangular, about two-thirds as
broad at base as they are long ; tibial shield shaped as in argus, but large]', and
the outer edge more strongly sinuated, in color outer half greenish white, streaked
and dotted blackish, remainder dark brown ; colored like the 2 > with the fore
femora, all the cox® and trochanters more or less, and medial legs entirely whitish ;
mesosternum with dense, white pubescence. Length 9-10 mm.

Montana.

39. Crabro aequalis n. sp.

2 . — Head finely and closely punctured, in front with a delicate striation ; space
between hind ocelli about equal to or slightly greater than the space between
them and the nearest eye-margin ; space between eyes at base of clypeus less than
the width of the latter in the middle, much narrower than in argus; anterior
margin of clypeus slightly sinuous, lateral angles not dentate; first joint of fla¬
gellum about as long as the two following united ; pronotum not strongly ridged
anteriorly, but strongly dentate at the sides; dorsulum with fine, even, tolerably
close punctures, those on mesopleur® still finer and more scattered, the episternal
suture very strongly foveolate; middle segment very coarsely rugose, the median
channel broadened decidedly toward base, on upper surface the rugae form ir¬
regular foveae, posteriorly transverse, the lateral ridges well developed and reach¬
ing the upper surface, sides smooth, at least medially ; pygidium coarsely punc¬
tured as in most species of this section. Black; mandibles and clypeus except
their apices, scape, pronotum, tubercles, scutellum and metanotum more or less,
tips of the femora, particularly the fore and medial pair, tibiae except a spot
within and apex of hind pair, tarsi more or less, a band on first abdominal seg¬
ment, a large spot at each side of second pointed within, narrower spots on third
and fourth, those on latter almost touching within, smaller spots on fifth, and a
spot on each side of ventrals 2 and 3, yellow ; silvery pubescence in the usual
situations, particularly obvious on mesosternum ; wings fusco-hyaline, paler at
base, nervures and stigma dark testaceous. Length 8 mm.

Georgia. Resembles C. cingulatus superficially, but the strongly
dentate pronotum, punctured pygidium, greater length of first joint

NORTH AMERICAN HYMENOPTERA.

165

of flagellum, etc., will serve in distinguishing it. The discovery of
the S may relegate it to the preceding group.

40. Crabro discrrtus n. sp.

9 . — Head finely and closely punctured, more transverse than in sequalis, front
with the punctures stronger and closer; space between eyes at base of clypeus
but slightly, if anything, less than the width of the latter in the middle ; anterior
margin of clypeus broadly truncate, not or scarcely dentate laterally ; first joint
of flagellum about as long as the two following united ; pronotum anteriorly
ridged at the sides only, rather strongly dentate at sides ; dorsulum subopaque,
with tolerably strong punctures, close anteriorly and evenly separated on posterior
portion, those on mesopleurte larger and sparse, episternal suture strongly foveo-
late; middle segment about as in sequalis, but a little less strongly rugose, and the
fovese formed by the rugae smaller, fo ve;e margining the posterior face outwardly
much smaller, and the sides more distinctly striated ; pygidium coarsely punc¬
tured, longer and less triangular than in the species mentioned above. Black ; no
yellow on tegulse or metanotum ; small spot on mandibles basally, clypeus except
fore margin, scape entirely, pronotum, tubercles, scutellum more or less, extreme
tips of four anterior femora, tibiae except a spot within, tarsi (apical joints darker),
narrow sinuated spot on each side of first abdominal segment, broader spots,
pointed within, on second longer, narrow spots on third, and a band on fourth
and fifth, yellowish ; veutrals not yellow, but their apical margins testaceous ;
wings fusco-hyaline, nervures and stigma dark testaceous. Length 9 mm.

District of Columbia (in coll. Ash mead).

41. Crabro a rgus Packard.

Crabro argus Harris (no descr.), Catal. Ins. Mass., p. 68 (teste Packard).

T hyrecpus argus Packard, 1. c., p. 359, 'J, .

Crabro argus Kohl, 1. c., p. 584.

9 . — Clypeus broadly truncate anteriorly, strongly dentate at each side, shaped
as in C. cingulatus ; head finely and closely punctured, most strongly so anteriorly ;
space between hind ocelli rather distinctly less than that between them and
nearest eye-margin ; first joint of flagellum shorter than the second ; pronotum
anteriorly ridged at extreme sides only, the lateral tooth strong; dorsulum punc¬
tured like the vertex, but more strongly; epimerum mesopleuralis with tolerably
fine, well separated though not sparse punctures, the episternal suture very
strongly foveolate ; middle segment above with coarse ridges, which form very
large fovese, on posterior face the mesial furrow is restricted to a medial, pyriform
pit, which is surrounded by a series of large fovea;, exterior to these fovese on
each side is a deep furrow, margined within and without by a ridge, sides of
middle segment not striated ; pygidial area longitudinally rugose. Black ; man¬
dibles except apex, scape, clypeus more or less, two strongly sinuated spots on
pronotum, tubercles, tips of fore and medial femora, tibia; except a spot within,
first joint of tarsi except apex, two rather broad, slightly sinuated spots on first
abdominal segment, almost touching within, large spot at each side of second
pointed within, longer and somewhat narrower spots on third, long spots on
fourth almost touching within and a band emarginate on each side on fifth, yellow ;
scutellum black ; wings subhyaline, with a slight yellowish cast, darker apically,
nervures and stigma testaceous. Length 9 mm.

TRANS. AM. ENT. SOC. XXII.

JUNE. 1895.

WILLIAM J. FOX.

166

% .—Cheeks striated from the eyes backward instead of from top to bottom as
is usually the case, strongly depressed below and produced posteriorly into a
strong tooth or prominence; anterior margin of clypeus somewhat rounded out,
not dentate laterally, iu the middle slightly emarginate ; scape short, hardly one-
quarter times longer than the space between the eyes at the base of clypeus ; first
joint of flagellum small, not dilated or produced, in length about as long as the
pedicel lum, joints 2-6 with a large appendage on outer edge, that on joints 2 4
somewhat curved, and pointed at apex, that on second joint narrowest and most
curved, that on sixth broadest and not at all curved, four apical joints shorter
than the three preceding ones united ; thorax somewhat more coarsely sculptured
than in the female, the epimerum mesopleuralis, however, smooth, impunctate.
separated from mesosternum by a distinct furrow, which is strongest anteriorly ;
medial furrow of posterior face of middle segment larger than in 9 1 first joint
of medial tarsi fully twice as long as the remaining joints united; base of fore
femora outwardly terminating in a long, slender production ; tibial shield long,
pointed apically, the outer margin once sinuated, the opposite margin revolute,
in color greenish yellow basally, dotted with paler, otherwise brownish, also dotted
with yellow ; first joint of fore tarsi more than twice as long as the remaining
joints united; colored like the 9- but differing as follows: medial legs entirely,
greater part of fore femora^ yellow; spots on pronotum sometimes wanting;
mesosternum with a dense white pubescence, hind femora with a black spot ex¬
ternally. Length 9-10 mm.

Canada (Harrington); Maine (Packard); New Hampshire:
Franconia (Mrs. Slosson); Long Island, New York (Ashmead);
Washington. The specimen of latter locality may be labeled erro¬
neously, as I have seen no specimens from intermediate localities.
The 9 , of which I have examined but one specimen collected by
Mrs. Slosson, is difficult to separate from C. cingulatus of the pre¬
ceding group. The absence of maculations on scutellum and meta-
notum, small spots on pronotum, dark spots on the tibia; within,
darker wings and smaller maculations of abdomen will aid in dis¬
tinguishing this species. The S is too distinct to require comment.

42. ('rabro tenuis n. sp.

9 . — Head with fine, tolerably close punctures, though not so close as iu the
preceding species of this section; space between hind ocelli about equal to or
slightly less than that between them and the nearest eye-margin ; clypeus rather
longer than usual, the anterior margin strongly rounded out ; pronotum not ridged
anteriorly, angular at the sides, but not dentate ; dorsulum with fine, rather close,
even punctures, those on the epimerum mesopleuralis stronger and sparse, the
episternal suture distiuctly though not very strongly foveolate ; middle segment
above witli coarse ridges curving toward the sides, the medial furrow unusually
broad and shallow, posterior face rugose at apex only, the lateral ridges well de¬
veloped, sides with a rather fine striation. Black ; basal half of mandibles, cly¬
peus more or less, scape anteriorly, two spots on pronotum, tubercles, scutellum
more or less, fore and medial tibiae except a spot within, basal portion of hind
pair, first joint of tarsi, sinuated spot on each side of first abdominal segment,
broad spot on second narrow, somewhat sinuated spot on each side of third to fifth,

NORTH AMERICAN HYMENOPTERA.

167

those on the latter segment sometimes reduced to dots, yellowish white ; pale hair
on vertex and cheeks rather prominent ; silvery pubescence in usual situations ;
wings subhyaline, but little darker apically, nervures and stigma dark testaceous.
Length 7.5-8 mm.

% . — More coarsely sculptured than in 9 ; head striated in front, above and on
cheeks rather coarsely and closely punctured ; flagellum broadest basally, the
first joint with a bunch of white hairs beneath ; anterior margin of clypeus with
a prominent quadrate production medially ; cheeks strongly depressed below ;
pronotum with a small tooth laterally ; dorsulum closely but less coarsely punc¬
tured than occiput ; mesopleurge with the epimerum above striated similarly to
its episternum: middle segment with sides more coarsely striated, the posterior
face more rugose, the lateral ridges longer, reaching the upper surface, first joint
of medial tarsi scarcely one-third longer than the length of the remaining joints
united ; tibial shield somewhat longer than broad, the lower margin almost
straight, not sinuate or emarginate, posteriorly the shield rounded, in color brown¬
ish in greater part, otherwise greenish, narrowly streaked with yellow, yellow
also at extreme base ; marked very much as in the 9 > except as follows : no yel¬
low on scutellum, and tubercles, fore femora almost entirely, middle femora with
a stripe anteriorly and posteriorly, a line on hind tibiae anteriorly and posteriorly
and a small spot on each side of ventral abdominal segment 2, yellowish. Length
8 mm.

Colorado. The small size, sculpture of 9 > shape of tibial shield
of % , and shape of fore margin of clypeus are the chief points of
difference in this species.

43. Craforo inetlius n. sp.

% . — Head coarsely and closely punctured, distinctly striated anteriorly ; space
between hind ocelli rather distinctly less than that between them and the nearest
eye-margin; flagellum not much broadened, widest medially, first joint without
bunch of hairs beneath ; cheeks coarsely striated, slightly depressed, not keeled
beneath ; pronotum strongly ridged anteriorly, particularly toward the sides, the
lateral tooth strong and sharp; dorsulum and scutellum coarsely and closely
punctured ; epimerum mesopleuralis sparsely punctured, separated from the
mesosternum by a strong furrow, episternal suture strongly foveolate ; middle
segment very coarsely rugose, the ridges on upper surface forming foveee, on pos¬
terior face transverse, and not so strong; lateral ridges exceedingly strong, the
sides with irregular striations; first joint of medial tarsi somewhat less than one-
third longer than the remaining joints united ; form femora at base extended
into an acuminate production, which is nearly as long as that part of the femora
before its junction with the trochanter ; tibial shield rather small, obtuse apically,
outer margin being sinuated or once emarginate, in color the lower portion is deep
black, on remainder yellowish streaked with blackish. Black, including scape
posteriorly, and thorax entirely ; spot on mandibles medially, scape anteriorly,
greater part of fore femora, tips of medial pair and a spot before their apices,
tibiae except a dark spot within and on fore pair without, first joint of tarsi,
sinuated spots on first abdominal segment, large spots on second, slender spots on
segments 3-6, all of which are separated medially, and usually though not always,
a lateral spot on ventrals 2 and 3, yellow ; clypeus either black or more or less
yellow ; pubescence on mesosternum rather long ; wings subfuscous, nervures
dai’k. the stigma -paler, testaceous. Length 7-8.5 mm.

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

WILLIAM J. FOX.

168

W ashington ; Nevada. The specimen from the latter locality is
smallest and less coarsely sculptured. A 9 specimen from the first
mentioned locality I refer herewith some doubt; it resembles ad-
venus, but the clypeus is black and dentate laterally ; sculpture of
the dorsulum is coarser, that of the epimerum mesopleuralis sparser,
while that of the upper surface of middle segment tends to a rugged
rather than a ridged nature ; the markings are of a deeper yellow,
those on abdominal segments 2-6 heavier and not at all sinuate or
emarginate ; tips of femora yellowish, as well as mandibles except
tips. Length 10 mm.

44. Crabro Provaneheri n. n.

Thyreopus sinuatus Provancher (nee Fabr.), Hym. Quebec, p. 664, 9 •

9 .—Head finely and closely punctured, not striated on front and vertex, but
more strongly punctured ; space between hind ocelli slightly less than that be¬
tween them and the nearest eye-margin ; anterior margin of clypeus not dentate
laterally ; pronotum well ridged anteriorly, the lateral tooth strong and sharp ;
dorsulum with tolerably close and strong punctures; scutellum similarly punc¬
tured ; mesopleurse with finer but sparser punctures, the episternal suture strongly
foveolate ; middle segment above with coarse, somewhat radiating ridges, which
terminate outwardly at a strong curved ridge, which bounds the upper surface,
posterior face transversely and less coarsely rugose, the lateral ridges well devel¬
oped, sides except medially, striated. Black, including the scape except extreme
apex ; spots on mandibles medially, clypeus, pronotum almost entirely, tubercles,
scutellum anteriorly, tips of femora and a spot beneath near the apex of fore and
medial pair, tibia- except darker spot within, first joint of tarsi, and spots on the
abdomen as in cribrellifer, yellow; wings subhyaline, darker at apex, nervures
and stigma dark testaceous. Length 12 mm.

Toronto, Canada (Provancher) ; Jacksonville, Florida (Ashmead).
A Crabro sinuatus has been described from Europe, thus making it
necessary to change Provancher’s name. This species will probably
prove to be the 9 of cribrellifer.

45. Crabro cribrellifer Pack.

Thyreopus cribrellifer Packard, 1. c., p. 358, 'J, .

Crabro cribellifer (sic) Kohl, 1. c., p. 585.

% . — Head closely punctured, anteriorly most coarsely being striato-punctate ;
space between hind ocelli a little less than that between them and the nearest
eye-margin ; flagellum broadest basally, not so broad as in latipes, the basal joint
with a bunch of white hairs beneath ; cheeks depressed, not produced posteriorly,
scarcely ridged beneath; pronotum strongly ridged anteriorly, the lateral tooth
well developed, acute ; dorsulum with distinct, tolerably well separated punctures,
closer and finer, however, than in latipes : epimerum mesopleuralis very sparsely
punctured, almost smooth, the episternal suture as well as that which separates
the epimerum from the mesosternum heavily defined and strongly foveolate :
middle segment above very coarsely rugose, the rugae forming irregular foveas. on
posterior face transverse, the lateral ridges very strong and extending to the upper

NORTH AMERICAN HYMENOPTERA.

169

surface, sides coarsely striated ; fore femora remarkably shaped, being fully three
times broader than long, flattened ; tibial shield large leaf-like, decidedly longer
than broad, obtusely pointed apically, the outer margin bilobate, or in other words
strongly emarginate medially, in color brownish, closely dotted with pale basally,
sparsely so on remaining portion ; first joint of fore tarsi scarcely longer than the
remaining joints. Black, including the scape, except extreme apex, and scutel-
lum and postscutellum ; spot on mandibles medially, clypeus more or less, two
sinuous spots on pronotum, tubercles, fore femora, medial femora apically, tibhe
except a spot within, basal joint of tarsi, two sinuous spots on abdominal segment
1, two broader spots on segment 2, long narrow spots on 3, and a band on seg¬
ments 4 6, emarginate anteriorly and sometimes separated medially, yellow ; sil¬
very pubescence in the usual situations; wings subhyaline, slightly darker
apically. Length 10 11 mm.

Canada (Harrington); Maine and Massachusetts (Packard);
Long Island, New York (Ashmead) ; Illinois. Having one of
Packard’s types before me I must take exception to his description
of the fore femora, he says, “(fore) femora twice as long as broad
....,” while in the specimen before me the femora are as described
above.

46. Crabro lal i pcs Sm.

Crabro gryphus Harris, Cat. Ins. Mass., p. 68 (teste Packard).

Crabro latipes Smith, Cat. Hym. Brit. Mus., iv, p. 396, ^ .

Crabro latipes Cresson, 1. c., p. 477.

Thyreopus latipes Packard, 1. c., p. 355, 'J, .

Thyreopus coloradensis Packard, ibid., p. 356, % .

Crabro latipes Kohl, 1. c., p. 584.

Crabro coloradensis Kohl, ibid., p. 585.

I, . — Head closely punctured, most coarsely so anteriorly, where it has the ap¬
pearance of being striato-punctate ; space between hind ocelli but little less than
that between them and the nearest eye-margin, the space between the eyes beneath
at base of clypeus, fully equal to or slightly greater than the length of the clypeus
in the middle ; flagellum broadest by far towards the base, and narrowed to apex
from second joint, the first joint without a bunch of white hairs beneath ; cheeks
keeled beneath near the eye-margin, depressed, but not produced posteriorly ;
pronotum with a small tooth laterally, but not ridged anteriorly; dorsulum with
rather coarse, well-separated punctures, closest anteriorly ; mesopleurse more finely
punctured, the episternal suture not very strongly foveolated, furrow separating
the epimerum mesopleuralis from mesosternum present, but feebly developed ;
middle segment above and posteriorly rugose, most coarsely above, the basal series
of foveae more prominent than usual, lateral ridges of posterior face strong, ex¬
tending somewhat beyond the middle though not reaching the upper surface •
first joint of medial tarsi nearly twice as long as the remaining joints united ;
tibial shield large, leaf-like, much longer than broad, acuminate apically, its outer
margin trilobate, in color : apically yellow, with three broad, dark streaks, basally
black with several pale, narrow streaks ; first joint of fore tarsi more than twice
longer than the remaining joints united. Black ; mandibles, except apex, clypeus
more or less, scape anteriorly, fore trochanters, femora and tibiae in part, medial

(22)

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

170

WILLIAM J. FOX.

trochanters beneath, their femora anteriorly and posteriorly, medial and hind
tibise except internally, first joint of tarsi, a sinuous spot on each side of first
abdominal segment, broader spots on second, long slender marks on segments 3-6,
those on segments 4, or 5 and 6 generally touching within, thus forming a band,
and small lateral spots on second ventral, yellow ; thorax not at all marked with
yellow; mesosternum with a rather long, pale pubescence. Length 8 10 mm.

Nova Scotia (Smith ) ; Canada ( Harrington ) ; Montana ; Colorado ;
Arizona; Oregon; Washington. Notwithstanding the differences
pointed out by Packard between latipes and coloradensis I feel obliged
to unite the two. I have the types of coloradensis before me and
fail to discover the differences indicated by that author. It is true
that the abdomen in his type specimens is longer than in others, but
a large series, twenty-four specimens, shows the intergradational
forms to the specimens with the shorter, more ovate abdomen.

47. Crabro vieimis Cress.

Crabro vicinus Cresson, 1. c... p. 479, 9 •

Crabro succinctus Cresson (in pt.), ibid. p. 479, 9 •

Thyreopus advenus Packard (in pt.), 1. c., p. 368.

Thyreopus succinctus Packard, ibid. p. 369.

Crabro vicinus Cresson, Synopsis, p. 285.

9 . — Head finely and closely punctured ; space between hind ocelli but slightly
less than that between them and the nearest eye-margin ; anterior margin of
clypeus sinuated, but not strongly, not or scarcely dentate laterally ; pronotum
feebly furrowed at the sides, not ridged anteriorly, and not at all dentate laterally ;
dorsulum with rather strong, well-separated punctures, particularly on posterior
portion ; punctures of mesopleu rae not stronger than those of the dorsulum but
much sparser, the episternal suture with tolerably strong fovea. ; middle segment
above with a rather fine striation, curving toward the sides and basally some¬
times with a few short, stronger stria or ridges, posterior face roughened, coria¬
ceous, the lateral ridges becoming obsolete above the middle, sides with a fine,
rather indistinct, striation. Black; mandibles except apex and extreme base,
clypeus more or less, generally entirely except fore margin, scape, sometimes
spotted behind with black, spots on pronotum sometimes almost connected within
and again being absent, tubercles entirely or in part, scntellum more or less (some¬
times black), tips of femora, tibia except a dark spot within, first joint of tarsi,
two sinuous spots on first abdominal segment in some cases connecting internally
and thus forming a band, broader spots on segments 2. 3 and 4, those on the latter
segment generally forming a band, and irregular spots on ventrals 2 and 3, which
may be absent in part or entirely, yellow ; wings with a yellowish tinge, the ner-
vures and stigma of that color ; pubescence of head and thorax pale gray. Length
8 -11 mm.

Colorado ; Nebraska (Barber) ; Nevada ; Arizona ; California ;
Mt. Hood, Oregon ; Washington ; Montana. A specimen labeled
Canada has the markings greenish white. This is a variable species,
but is easily distinguished by the form of pronotum, hue sculpture
of upper surface of middle segment and sculpture of dorsulum. It
will probably be placed as the 9 of latipes eventually.

NORTH AMERICAN IIYMENOPTERA.

171

11. Group tenuiglossus.

The males of this group differ from those of group largior by the
simple, lion-dilated antennae, and by the first joint of fore taisi being
without an appendage ; otherwise they are the same. The females
are indistinguishable from those of the preceding group.

48. Crafor© (onspiciiiis Cress.

Crabro conspicuus Cresson, Proc. Ent. Soc. Pliila., iv, p. 480, 9 •

Thy reopus conspicuus Packard, 1. o., p. 369.

Crabro conspicuus Kohl, 1. c., p. 585.

9 .—Head finely and closely punctured, but less so than advenus ; space between
hind ocelli less than that between them and the nearest eye-margin ; anterior
margin of c.lypeus broadly truncate, armed with a distinct, blunt tooth on each
side; pronotum strongly furrowed on each side, the frontal ridges strong, but
short, the lateral tooth not well developed; dorsulum a little less closely punc¬
tured than in advenus; mesopleurse with large and sparse punctures, stronger
than in the species mentioned above, the epistemal suture less strongly foveolate;
middle segment as in advenus, hut the furrow of upper face not so strong, and the
sides more feebly striated, sometimes smooth and glabrous medially. Black ;
mandibles on basal two-thirds, scape, clypeus, two large spots on pronotum, tuber¬
cles, scutellum (black in one case) tips of femora, fore pair beneath and sometimes
medial pair, tibi<e except a line within, first joint of tarsi, a broad band on first
dorsal abdominal segment, two broad spots on second, which are broadly truncate
within narrower spots on segments 3 and 4, these spots pointed internally and
emarginate anteriorly, a band on segment 5 and an irregular spot on each side
of ventral segment 2, yellow ; wings subhyaline, darker apically, all the nervures
and stigma dark ; silvery pubescence in the usual places, but rather sparse.
Length 10 mm.

Colorado ; Washington. The shape of markings of abdomen
seems to be a good superficial character for distinguishing this from
advenus.

49. Crabro advenus Sm.

Crabro pegasus Harris, Catal. Ins. Mass., p. 68 (no descr.).

Crabro advenus Smith, 1. c... p. 421, 9 (non % ).

Crabro succinctus Cresson (in pt.), Proc. Ent. Soc. Phila., iv, p. 4*9, 9 •

Thyreopus pegasus Packard, 1. c., p. 362, % 9 •

Thyreopus advenus Packard (in pt.), ibid. p. 368.

T hy reopus, succinctus Packard, ibid. p. 369.

Crabro advenus Kohl, 1. c., p. 584.

Crabro pegasus Kohl, ibid. p. 585.

Crabro succinctus Kohl, ibid. p. 585.

9 . _ Head finely and closely punctured ; space between hind ocelli about equal

to or slightly greater than the space between them and the nearest eye-margin ;
anterior margin of clypeus broadly truncate, not dentate, the lateral angles ob¬
tuse ; pronotum strongly furrowed on each side the frontal ridges well developed,
the lateral tooth strong ; dorsulum with tolerably fine and close, even punctures,
those on scutellum sparser; mesopleurse with rather large and sparse punctures,

June, 1895.

TRANS. AM. ENT. SOC. XXII.

172

WILLIAM J. FOX.

the episternal suture strongly foveolate. the epimerum toward the metapleurse
somewhat rugose: middle segment above with coarse ridges running from the
base to the sides, those on the posterior face transverse and less strongly developed,
lateral ridges strong, extending to the upper surface, sides of middle segment finely
striated, scarcely so medially. Black ; a spot at base of mandibles generally con¬
fined to inner margin, clypeus, scape, two large spots on pronotum, tubercles,
scutellum anteriorly, tibise, except a spot within and sometimes an outer spot at
apex of hind pair, first joint of tarsi, a sinuous spot at each side of first abdominal
segment, wedge-shaped spots on second, narrower and longer, somewhat sinuated
spots on third and fourth, and a medial elongate spot at apex of fifth, sometimes
connected with small lateral dots, which are not always present, yellow ; femora
entirely black ; wings subhyaliue, dusky apically, nervures in basal half testa¬
ceous, the stigma and remaining veins dark ; silvery pubescence in the usual
situations, rather long on the cheeks and thorax beneath. Length 9-10 mm.

^ . — Head more coarsely punctured, the vertex and upper part of front dis¬
tinctly striated ; cheeks beneath near the eye-margin with a slight keel ; mandi¬
bles but slightly swollen toward the base on outer margin : dorsulum more dis¬
tinctly punctured than in female, the mesopleune less distinctly so ; epimerum
mesopleuralis separated from the mesosternum by an exceedingly strong furrow ;
middle segment coarsely rugose ; above the ridges form large, irregular fovete, on
posterior face are transverse, sides rather coarsely striated ; nervures entirely
testaceous; marked as in the ?, but the fore and medial tibiae are not dark
within, and the spots on segments 4 and 5 are connected ; tibial shield somewhat
cordiform, its outer margin being produced to give it this shape, in color dark
brown, narrowly streaked with yellow, except basally ; flagellum testaceous be¬
neath, not noticeably broadened; first joint of medial tarsi but slightly longer
than the combined length of the remaining joints. Length 7-11 mm.

Nova Scotia (Smith) ; Ottawa ( Harrington) ; Maine ; Long Island
(Ashmead); Philadelphia, Pennsylvania (Seeber); West Point,
Nebraska (Barber) ; Colorado ; Washington. The l referred by
Smith to this species is C. nigrifrons Cresson, as no species of this
section have the antennae formed as described by Smith. Packard
evidently had C. vicinus confused with this species, which accounts
for his statement regarding the finely striated propodeum (middle
segment >. Of the three type specimens of C. succinctus Cresson,
examined, I find two are advenus, and the other identical with C.
vicinus. It would be impossible to straighten out the synonymy of
this species, had I not the opportunity of examining the types of
Cresson. Packard gives no locality for pegasus, but his specimens
were presumably from some of the New England States.

50. Crabro lliyreophorus Kohl.

Crabro ( Thyreopns ) thyreophorus Kolil, 1. c., p. 585, pi. xiv, figs. 27, 29, ^ 9.

9 . — Head with the sculpture subtile; first joint of flagellum distinctly shorter
than the following two united ; space between hind ocelli less than that between
them and the nearest eye-margin ; pronotum not furrowed, the sides anteriorly,
not dentate, rounded laterally ; dorsulum with sparse, shallow punctures, densest

NORTH AMERICAN HYMENOPTERA.

173

anteriorly; scutellum sparsely punctured ; meso pleura: punctured about like the
dorsulum, but more regularly so, the fovese of the episternal suture scarcely evi¬
dent ; sculpture of middle segment indistinct, above appearing longitudinally and
finely striated, the sides and posterior face subtilely sculptured, lateral ridges of
the latter absent ; abdomen broader than in vernalis, not much narrowed to the
first segment. Black, including the mandibles; scape, two spots on pronotum,
tubercles, line on scutellum, apex of all the femora, tibia? entirely, tarsi except
apical joints, a large wedge-shaped spot on segments of abdomen 1-4, a band on
segment 5, and lateral spots on ventrals 2 and 3, bright yellow ; head, thorax and
first segment of abdomen with unusually long, shaggy, yellowish brown hair:
wings fulvo-hyaline. somewhat darker apically, nervures and stigma yellowish ;
no silvery pubescence, instead the long hair. Length 9-10 mm.

'k . — Sculptured like the 9 • but the middle segment is distinctly striated above,
as well as on the sides, and the punctuation of mesopleurse is closer ; space between
the hind ocelli very much less than that between them and the nearest eye-
margin; antenna: longer and slenderer than in vernalis, acuminate at tip; pro¬
notum angular laterally ; marks on scutellum sometimes wanting, those on the
scutellum not present, markings of abdomen smaller than in the 9 , those on
fifth segment generally separated, the sixth segment, however, banded ; wings
paler than in 9 : clypeus black, with the inner orbits clothed with silvery pu¬
bescence ; fore trochanters almost equaling their femora in length, not much
broadened apically ; tibial shield larger and broader than in vernalis ; basally it
is about as broad as long but narrows considerably behind, in color yellow, and
medially with irregular dark streaks, at the base broadly margined with black ;
first joint of medial tarsi distinctly longer than the remaining joints combined.
Length 8 mm.

Nevada. I have seen no specimens measuring less than 8 mm. ;
Kohl gives 7 mm. as the smallest. As in vernalis, the males possess
no furrow between the epimerum mesopleuralis and the mesosternum.

51. Crabro vernalis Pack.

Thyreopus vernalis Packard, 1. c., p. 369, 9 •

Crabro vernalis Kohl, 1. c., p. 585.

9- — Head with the sculpture subtile, indistinct ; first joint of flagellum about
as long as the two following united ; space between the hind ocelli somewhat
greater than that between them and the nearest eye-margin ; lateral impressions
of vertex very shallow ; pronotum but slightly furrowed at the sides anteriorly,
the lateral teeth small and blunt ; dorsulum with sparse, shallow punctures,
densest anteriorly ; scutellum scarcely punctured ; mesopleurse with the punctures
slightly stronger than those of the dorsulum, the episternal suture rather strongly
foveolate; middle segment above longitudinally and rather finely striated, more
distinctly so in some specimens than in others, the posterior face and sides sub¬
tilely roughened, the lateral ridges of posterior face very short ; abdomen fusiform,
the first segment broad at apex, not tumid. Black, including the mandibles and
clypeus; scape at apex, large spots on pronotum, tubercles, scutellum, metanotum,
tips of fore and medial femora, tibiae except a line within and apex of hind pair,
first joint of tarsi, a wedge-shaped spot on dorsal abdominal segments 1-3, nar¬
rower marks on segment 4, and a continuous line on segment 5, whitish ; head
and thorax clothed with thin, long, pale pubescence ; no silvery pubescence on
cheeks or thorax : wings subhyaline. Length 7.5-9 mm.

TRANS. AM. ENT. SOC. XXII.

JUNE. 1895.

174

WILLIAM J. FOX.

£ . — Sculptured like the 9 ■ hut the middle segment on sides striated, and the
episternal suture of mesopleurae less strongly foveolate ; space between hind ocelli
slightly less than that between them and the nearest eye-margin ; the markings
are substantially the same as in the 9 those -on the abdomen, however, touching
within, there are small lateral spots on the second and third ventral segments and
the clypeus has two white spots; fore femora black, except tips and a short line
on outer side at apex ; fore trochanters triangular, in length not more than half
that of their femora ; tibial shield a little longer than broad, its outer and poste¬
rior margins strongly rounded, the anterior margin scarcely rounded, in color
greenish white, streaked with paler throughout ; first joint of medial tarsi about
as long as the remaining joints united. Length 7 mm.

Illinois ; Colorado. Distinguished by the color of its markings,
sculpture, loug pubeseeuee of head and thorax, etc. There is no
suture between the epiiherum mesopleuralis and the mesostemum in
this species.

52. Crabro virgatus n. sp.

^ . — Front and vertex coarsely striated, cheeks and occiput coarsely and closely
punctured ; antenna} long, slender, the flagellum decidedly longer than twice the
length of the scape; space between hind ocelli distinctly less than that between
them and the nearest eye-margin ; pronotum at each side behind the strong lat¬
eral tooth with a strong pit or fovea ; dorsulum coarsely and closely punctured ;
scutellum and mesopleurae coarsely striated, with punctures between the stride ;
middle segment above and on posterior face rugose, at the base with a transverse
row of large fovea1, the channel which divides the upper surface broad, deep and
transversely ridged so as to appear foveolated, sides of middle segment striated,
less strongly so in the middle ; tibial shield broader than long, in shape somewhat
triangular, broadly margined anteriorly with black, otherwise, except a black
spot near apex of tibiae grayish, dotted with yellow marks. Black, including the
mandibles, clypeus and thorax entirely; scape with a narrow yellow stripe: fore
femora beneath, tibiae more or less, the fore tarsi and the first joint of the other
pairs, spot on each side of first abdominal segment emarginate posteriorly near
inner end, a wedge-shaped spot on each side of segment 2, linear markings on
segments 3-5. spots or lines on segment 6 and a small spot at each side of ventral
segment 2, yellow; silvery pubescence scarcely evident on the cheeks, though
present in the other usual situations; wings except base subfuscous, nervures and
stigma black. Length 8 mm.

Nevada. Easily distinguished by the sculpture. I11 the single
specimen before me dorsal abdominal segments 3-5 have basal ly a
chitinous covering, the apical margin of which is deeply bowed.
Whether this is an anomalistic or an ordinary character of the spe¬
cies is difficult to decide without other specimens. I am inclined to
regard it as an anomaly.

53. Crabro incertiis n. sp.

9 . — Head closely punctured ; lateral impressions of vertex broad and not deep ;
space between eyes beneath at base of clypeus less than in tenuiglossus, but greater
than in tumidus, somewhat less than the length of the pedicellum and basal joint

NORTH AMERICAN HYMENOPTERA.

175

of flagellum united ; pronotum strongly furrowed on each side anteriorly, thus
forming an anterior ridge which terminates in a strong tooth ; dorsulum com¬
pactly punctured; mesopleune with large punctures, which are not scattered as
in the two preceding species, although they are not close by any means ; sculpture
of upper surface of middle segment variable, generally with a large fovea medi¬
ally, on each side of which there are smaller fovea, or numerous irregular ridges ;
in one specimen the upper surface is marked by strong radiating ridges, in the
middle with a broad channel, narrowed basally; the remainder of middle seg¬
ment, sides excepted, rather strongly and transversely rugose: first abdominal
segment in form intermediate between tenuiglossus and tumulus. Black ; base of
mandibles, scape, greater part of pedicellum, two large spots on pronotum, tuber¬
cles, line on scutellum, metanotum, tips of femora, tibiae except within, a small
lateral spot on first abdominal segment, much larger and elongate spots on seg¬
ments 2-4, and greater part of fifth segment except base and a small black spot
laterally, yellow ; tarsi yellow testaceous : wings on apical half subfuscons ; silvery
pubescence as usual. Length 8-9 mm.

% . — Very much like the 'J, tumulus ; differs by the strongly and more closely
punctured mesopleurse; flagellum decidedly shorter and stouter ; head and dor¬
sulum more strongly punctured ; and the tibial shield is darker and narrower,
being distinctly longer than broad ; the form is narrower and more lengthened ;
markings about the same, except they are narrower on the abdomen, those on
pronotum and scutellum sometimes wanting, the metanotum always maculate,
however ; first abdominal segment longer than in tumidus 'J, ; femora entirely
black. Length 8-9 mm.

4 Texas ; Arizona. The coarser and closer sculpture of mesopleurse
will aid in distinguishing this from the two preceding species. The
% specimens are placed here with some doubt. The males resemble
those of C. peltista Kohl from Mexico, but the first joint of anterior
and medial tarsi is shaped differently.

54. Crabro I inn i<l us Pack.

Thyreopus tumidus Packard, 1. c.. p. 365, 'J, 9 .

Crabro tumidus Kohl, 1. c., p. 585.

9 • — Head closely punctured : lateral impressions of vertex deep ; space between
eyes beneath at base of clypeus somewhat less than the length of the pedicellum
and first joint of flagellum united ; pronotum on each side before the anterior
margin strongly furrowed, thus forming a short anterior ridge, which terminates
laterally in a strong tooth ; punctures of dorsulum and scutellum more or less
separated ; mesopleurse with large, shallow, scattered punctures, not striate; mid¬
dle segment about as in tenuiglossus, but the sculpture of posterior face coarser,
and the large medial fovea of upper face more elongate, the posterior face is also
much more widely channeled, and its lateral ridges shorter; first abdominal seg¬
ment elongate, tumid at apex. Black ; mandibles except apex, scape, two spots
on pronotum, tubercles, metanotum, a spot on scutellum sometimes, the tips of all
the femora more or less, tibiae except within, an elongated spot od each side of
dorsal abdominal segments 2-4, a smaller spot on each side of the fifth, which
lias sometimes a medial spot, connecting by a narrow line with the laterals, yel¬
low; tarsi yellowish testaceous; silvery pubescence in the usual situations, and
abdomen with sericeous pile as in tenuiglossus ; wings pale subhyaline, darker
apically, strongly iridescent. Length 8-9 mm.

TRANS. AM. ENT. SOC. XXII.

JUNE. 1895.

176

WILLIAM J. FOX.

'k . — Antennae shorter and stouter than in the % of tenuiglossus; punctures of
dorsulum well separated ; otherwise somewhat more coarsely sculptured than the
9 ; colored and marked the same, except that the fore femora are yellow beneath,
and there is a dark spot on scape posteriorly, which is visible, from the front ;
wings slightly darker and without darker apical margins; tibial shield not much
longer than broad, brownish, with several sinuous, pale stripes, at base yellow;
prouotum and first abdominal segment with or without spots. Length 8 mm.

Illinois ; New York ; Pennsylvania ; Delaware. A slenderer
form than tenuiglossus.

55. Crabro (oiuiiglossiis Pack.

Crabro tenuiglossa Packard. Proc. Ent. Soc. Pliila., vi, p. 98, 9 •

Thyreopus discifer Packard, 1. e., p. 363, 'J, .

Thyreopus tenuiglossus Provaneher, Add. Hym. Quebec, p. 292.

Crabro tenuiglossus Kohl, 1. o., p. 585.

9- — Head finely and closely punctured; lateral impressions of the vertex
broad and very shallow ; space between eyes beneath at base of clypeus about
equal to the length of the pedicellum and first joint of flagellum united, at any
rate not less ; lingua large, prominent, greatly lengthened ; pronotum not strongly
furrowed on each side anteriorly, the lateral teeth small, but distinct and sharp ;
dorsulum and scutellum with rather coarse, compact punctures; mesopleurse with
rather large, shallow, scattered punctures, and in addition with a fine striation;
middle segment above with a large, hexagonal fovea in the middle and several
smaller ones on each side, the posterior face transversely rugose apically ; first
abdominal segment broad, slightly tumid at apex. Black, including the mandi¬
bles ; scape, two sinuate spots on pronotum, sometimes broken into four dots,
tubercles, metanotum, tips of anterior and medial femora, tibiae except a black
spot on inner side of fore and medial pairs and a testaceous mark at apex of hind
pair, an elongated transverse spot on each side of dorsal abdominal segments 2 5,
and sometimes a lateral dot on the first segment yellow, the marks on segments
2 and 3 broadest, and that on segment 4 narrowest ; fore and medial tarsi testa¬
ceous, hind pair blackish ; clypeus, inner orbits broadly, cheeks and thorax be¬
neath with silvery pubescence; abdomen with a sericeous pile, more obvious on
segment 5 ; wings subhyaline, faintly iridescent, nervures and stigma pale testa¬
ceous. Length 8 mm.

% . — Resembles the 9 I lateral impressions of vertex stronger, but not deep ;
thorax more coarsely punctured, but essentially the same; medial tarsi rather
distinctly flattened ; tibial shield decidedly longer than broad, obtusely rounded
anteriorly and posteriorly, brownish, mottled with darker yellow at base : colored
like the 9 > hut the fore and middle femora are yellow beneath, and there is quite
a prominent yellow spot on each side of first abdominal segment; mesosteruum
with tolerably long, dense, white hair beneath. Length 7-8 mm.

Illinois; South Dakota (Aldrich); Ottawa (Harrington). A
much more robust form than C. tumidus, and is distinct in other
prominent characters.

12. Group hilar is.

These species resemble those of the preceding group to some ex¬
tent, but are easily distinguished by the almost simple fore legs and

NORTH AMERICAN IIYMENOPTERA.

177

antennse of the males. Pronotum dentate laterally ; first joint of
hind tarsi sometimes longer than the length of the longer spur of
tibiae, though usually of the same length ; pygidium broad, not de¬
pressed, and with appressed pubescence ; male an ten me not dilated,
fringed more or less beneath with long, thin pubescence, which is
more evident in some species than in others ; £ anterior legs not
deformed, their femora slightly flattened, and in some species clothed
with more or less long, dense, white pubescence beneath, as is also
the mesosternum.

This group may be identical with Anotliyreus Dahlb., but it differs
from it in some of its characters : by the fringed antennse and den¬
tate pronotum.

56. C'rabro cingula I us Pack.

Thyreopm cingulatus Packard, Proc. Ent, Soc. Phila., vi, p. 366, % 9 .

Crabro cingulatus Kohl, Zool. Jahrb. (Abtli. f. Syst. Geogr., etc.), iii, p. 584.

9. — Anterior margin of clypeus broadly truncate, somewhat incurved, the
lateral angles very prominent, almost tooth-like ; head finely and closely punc¬
tured, the front not at all striate; space between the hind ocelli slightly less than
that between them and the nearest eye-margin (in the other species of the group
it is greater) ; first joint of the flagellum a little shorter than the second ; pro-
notum well developed above, not strongly dentate laterally ; dorsulum closely
punctured, more strongly so than the head ; episternum mesopleuralis punctato-
striate; episternum and epimerum mesotlioracis finely punctured, much more
finely so than the mesopleurje, in fact they appear impunctate ; middle segment
above and on posterior face covered with very strong, irregular ridges or folds
forming large fovese, the longitudinal central channel deep, interrupted at base
of posterior face by a large, hexagonal fovea, on the upper surface a strongly
marked ridge forms a large semi-circular enclosure, at the base of which there
is a transverse, foveolated furrow, sides of middle segment not striated, somewhat
rugose at extreme apex ; first joint of hind tarsi distinctly longer than the longer
spur of hind tibiae ; abdomen closely and microscopically punctured, most dis¬
tinctly beneath, pygidium coarsely and longitudinally rugose. Black; mandibles
except apical third, two large spots on clypeus, which in the only specimen before
me are united by a slender line, scape entirely, pronotum above, tubercles, scu-
tellum, spot on metanotum, apical half of fore and medial femora and a line on
under side, the tips of hind pair, tibiae except a spot within on middle and hind
pair, first joint of tarsi, a broad band on first dorsal segment before apex, pointed
anteriorly in the middle, a large spot on segments 2 and 3, that on second segment
broadest and that on third longest, a band on segments 4 and 5, that on the fifth
segment twice emarginate anteriorly, and a small spot at each side of ventrals 2
and 3, yellow; apical joints of tarsi and tegulse testaceous; clypeus, frontal de¬
pression and cheeks with silvery pubescence, that on the thorax beneath sparser
and more grayish ; wings subhyaline, with a yellowish tinge, nervures and stigma
yellow testaceous. Length 9 mm.

— Long and slender; scape compressed; flagellum distinctly fringed, first
joint a little longer than the second ; space between hind ocelli greater than that

(23)

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

178

WILLIAM J. FOX.

between them and the nearest eye-margin ; punctuation of cheeks very dense ;
dorsulum rather strongly punctured ; episternum and epimerum mesothoracis and
sides of middle segment distinctly striated ; fore femora flattened toward the
base, clothed with long white hair, as is also the mesosternum ; fore and medial
tarsi with shorter hair within, their first joint flattened; the four anterior legs
are unusually slender in comparison to the hind pair, and are entirely yellow ;
abdomen with all the dorsal segments maculated except the last; no yellow on
scutellum or postscutellum. Length 9-11 mm.

Illinois; Texas. It is in my opinion very doubtful if the two
forms described by Packard and by myself above, are really sexes
of the one species. They contrast remarkably when placed side by
side, the short, stout form of the female and the male with its long,
slender build ; and moreover their character of sculpture is so dif¬
ferent. The female seems to differ but slightly from that of C. arcjus
which follows in the next group because of the characters of the % .
This fact leads me to believe that the 9 of cingulatus has yet to be
discovered, and that the 9 described above and by Packard belongs
to one of the two preceding groups. Nothing definite can be deter¬
mined, however, until the sexes are worked out better.

57. Crabro coguatus n. sp.

9 . — Head about as in hilaris, but is somewhat more distinctly punctured and
on the front the striation is more evident; first joint of flagellum a little shorter
than the two following joints united ; pronotum not strongly developed above as
in hilaris, shorter, not so distinctly dentate; punctuation of the mesopleurae
coarser than in the species mentioned, and tends to punctato-striate on the epis¬
ternum mesopleuralis ; episternum and epimerum metathoracis more or less
striated ; middle segment less coarsely ridged than in hilaris . the fovese conse¬
quently less marked, the central longitudinal channel above shallower, broader
and widened more basallv; medial and hind tibiae and tarsi more strongly
spinose ; abdomen about as in hilaris. Black ; colored as in the species mentioned,
except that the episternum mesopleuralis and apical portion of the hind tibiae is
black, as are likewise all those parts which, in hilaris. vary from black to yellow¬
ish ; ventral abdominal segments 2, 3 and sometimes 4 with a small, yellow, lateral
spot; markings on first and fourth dorsal segments usually separated medially,
those on the second and third always widely so; wings subhyaline, darker at
apex ; clypeus, cheeks, and thorax beneath more densely with silvery pubescence.
Length 8 9.5 mm.

% . — Scape of antennae compressed, broader by far at apex than at base, widest
medially, however : flagellum short, rather stout, not thickened medially, nar¬
rowed a little to the apex, distinctly fringed beneath, the first joint about one-
third longer than the second ; sides of middle segment coarsely striated, except
medially, where they are sparsely and finely punctured (sometimes the striae are in¬
distinct) ; remainder of middle segment more coarsely sculptured than in the 9 ;
mesosternum clothed with long, dense, white hair, that on the base of fore femora
shorter and sparser, the fore and medial tarsi with shorter and stift’er white hair
within ; last two dorsal segments of abdomen not strongly punctured, the ultimate

NORTH AMERICAN IFOIENOPTERA.

179

but little, if anything, more distinctly so than the penultimate ; coxse in part,
trochanters, fore femora except an elongate spot behind, the medial pair except a
line above and behind, hind pair beneath except apex, four anterior tibiae and
tarsi entirely, hind tibiae at base and within, yellow ; flagellum testaceous beneath .
sixth dorsal segment seldom spotted with yellow. Length 7-9 mm.

Montana. The markings are remarkably constant in the forty
some specimens before me.

58. C'rabro liiluris Sm.

Crabro hilaris Smith, Cat. Hym. Brit. Mus. iv, 416. 9 •

Thyreopus cingulatus Packard (in pt.), Proc. Ent. Soc. Phila., vi, 366, % 9-

9- — Clypeus not strongly carinated, its fore margin broadly truncate; head
finely and closely punctured, most densely so on the front, which is indistinctly
punctato-striate ; first joint of flagellum about as long as the following two joints
united ; pronotum well developed above, rather long, deutate laterally ; dorsulum
strongly and tolerably closely punctured ; episternum and epimemm metathoracis
distinctly striated, though not coarsely so: middle segment above with coarse,
irregular ridges forming broad fovea;, whose shape, size and prominence vary, on
the posterior face these ridges are transverse, central longitudinal channel deep,
but little widened basally and interrupted at base of posterior face by a large
fovea, sides of middle segment, except medially, which is sparsely punctured,
with fine strife ; medial and hind tibiae strongly spinose ; abdomen above, except
the first segment, densely and microscopically punctured : pygidium broad, tri¬
angular, slightly convex, covered with large, separated punctures, and on apical
portion densely clothed with appressed golden pubescence. Black : mandibles on
basal two-thirds, clypeus except narrow apical margin, scape entirely, sometimes
pedicellum, pronotum above, tubercles, episternum mesopleuralis, scutellum and
a dot on each side anteriorly, two spots on metanotum (postscutellum), sometimes
the coxae and trochanters in part, tips of all the femora, particularly the fore and
medial pair, teguke, except a spot within, the size of which varies, and which is
sometimes entirely lacking, a band on the first dorsal segment before apex, two
transverse spots on segments 2 and 3, narrowed within and sometimes touching,
a band ou segments 4 and 5, and irregular markings on ventrals 2-4, yellow ; tarsi
except first joint, and apex of hind tibiae, testaceous ; clypeus and thorax beneath
sparsely and cheeks with silvery pubescence ; color of wings varying from fusco-
hyaline to subhyaline, the nervures and stigma testaceous. Length 9-10 mm.

% . — Clypeus narrower than in the 9 , its fore margin truncate and dentate
laterally; flagellum tolerably slender, somewhat subclavate. indistinctly fringed
with hair beneath ; dorsulum more strongly punctured, towards the sides punc¬
tato-striate ; middle segment more coarsely ridged ; first joint of hind tarsi, com¬
pared with the longer spur of hind tibiae, a little longer ; last two dorsal segments
of abdomen strongly punctured, the ultimate more distinctly so than the penul¬
timate ; in addition to the markings of the 9 , the first two or three joints of
the flagellum, the femora except a dark spot on outer side, four anterior tibiae
entirely, and greater part of abdominal segments 1 and 2, yellow ; the markings
on dorsal segments 5 and 6 sometimes obsolete; wings subfuscous. Length 7-10
mm.

Florida: St. John’s Bluff (Smith), St. Augustine (Johnson),
Jacksonville (Ashmead) ; Texas; Illinois. An examination of the

TRANS. AM. ENT. SOC. XXII.

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180

WILLIAM J. FOX.

types of Thyreopus cingulatus reveals that Packard had confused
hi laris with that species. He remarks, on p. 357, that the 9 de¬
scribed by him is referred doubtfully to cingulatus on account of the
difference in coloration. Strange to say, however, one of the original
types of the 9 does not possess the color marks about which Packard
speaks, and belongs to cingulatus

13. Group nitidiveutris.

Pronotum above large, convex, not crested, rounded at the sides;
middle segment above divided into two smooth convexities ; ocelli
in an almost equilateral triangle ; pygidium ( 9 ) narrowed apically
strongly depressed or excavated ; wings in all our species with several
dark spots; abdomen, as in the two preceding groups, spotted; an¬
tennae and fore legs of males simple.

This group represents in America the genus Blepharipus St. F.
et Br.

59. ( l'sikro mucii 1 i pen u is Sm.

Crabro maculipennis Smith (not Bleph. maculipennis Packard), Cat. Hym
Brit. Mus. iv, 417.

9 . — Head more distinctly and less closely punctured than in confertus, particu¬
larly the front and vertex, and appears more transverse than in that species, im¬
pressed line running from frontal depression to fore ocellus strong and wide;
pronotum at the sides sub-rounded, and short; dorsulum punctured like the ver¬
tex ; scutellum sparsely punctured anteriorly, more closely so on posterior portion ;
episternal suture of mesopleurae very heavily foveolate, more so than in confertus ;
base of the enclosure of middle segment with the usual transverse row7 of large
fovea;, the central furrow broadened basally, longitudinally ridged, the outer
furrow forming the enclosure much more heavily foveolated than in the species
mentioned above, posterior face coarsely rugose apically, the lateral ridges strong
and margined outwardly by a strongly foveolated furrow ; abdomen finely and
sparsely punctured above, except the first segment, which is impunctate, and,
excluding the pygidium, the punctures are most distinct and closest on fifth seg¬
ment; pygidium as usual. Black, including the mandibles and episternum meso-
pleuralis; scape entirely, pronotum, tubercles, line on scutellum anteriorly, spot
on each convexity of the enclosure of middle segment, tips of fore and medial
femora, tibia* except within and apex of hind pair, first joint of tarsi, a trans¬
verse spot on each side of dorsal abdominal segments 2-4, and a band on the fifth,
somewhat narrowed medially, pale yellow; clypeus and inner orbits beneath with
dense, silvery pubescence, that on the cheeks sparser; wings as in confertus, but
the dark spots are more distinct; head and thorax above with pale fuscous pu¬
bescence, that on thorax beneath pale. Length 11 mm.

% . — Front and vertex more coarsely punctured ; greater part of fore femora,
spot on each side of the sternum, anteriorly and two spots on clypeus, pale yel¬
low ; dark spots on wings very strongly marked. Length 10 mm.

NORTH AMERICAN HYMENOPTERA.

181

Franconia, New Hampshire (Mrs. Slosson). The markings are
much paler in this species than in the others of the group, and the
head, particularly in the female, is more transverse. From what
Packard states regarding the variability of the specimens of his
maculipennis, it seems to me that he had confused more than one
species.

60. Crabro con tortus u. sp.

Blepharipus maculatus St. Farg. and Brulle (not Fabr.), Ann. Soc. Ent. Fr.
ii, 730, 1834.

Crabro ( Blepharipus ) maculatus Dhlb., Hym. Eur. i, 344.

Blepharipus maculipennis Pack, (non Crabro maculipennis Sin.), Proc. Ent.
Soc. Phila., vi, 372, 9 ^ .

9 • — Clypeus of the usual form in this section ; head finely and closely punc¬
tured, more finely on the cheeks, posterior lateral angles rounded, not prominent ;
hind ocelli placed in shallow depressions, which are not so distinct as in nitidi-
ventris, and the impressed line running from frontal depression to fore ocellus is
not quite so deep as iu that species ; pronotum less rounded at the sides than in
the species above mentioned, and is shorter ; dorsulum closely punctured like the
vertex, scutellum a little more sparsely so ; episternal suture of mesopleurge dis¬
tinctly foveolate : enclosure of middle segment with a broad, transverse, heavily
foveolated furrow at base, the central longitudinal channel broadened basally and
longitudinally ridged (or as Packard puts it, “the furrow widens toward the base
of the enclosure so as to include two of the fossae”), the furrow bounding the en¬
closure outwardly also foveolate, but not so strongly so as the basal furrow, poste¬
rior face of middle segment not rugose apically, except, perhaps, the extreme
apex, the lateral ridges extending up somewhat above the middle, the outer fur¬
row distinct, but not foveolate ; abdomen finely and closely punctured above,
sparsely so on first segment; pygidium somewhat more coarsely punctured.
Black, including the mandibles, episternum mesopleuralis and convexities of
enclosure of middle segment; two spots on clypeus, sometimes absent, scape, line
on pronotum sometimes interrupted medially, tubercles, line on scutellum ante¬
riorly, spot 04 tegulje, apex of fore and medial femora, tibia*, except a spot on
inner side of anterior and middle pairs and apex of hind pair, first joint of all
the tarsi, a transversely elongated spot on each side of dorsal abdominal segments
2-4 and a band on segment 5, yellow ; sometimes the first segment has two small
spots on first segment ; sixth segment has two spots, which are, however, usually
concealed through retraction of the segment; apical joints of tarsi brownish,
those of the anterior pair palest ; clypeus, inner orbits beneath and cheeks with
silvery pubescence; head and thorax with a sparse, pale fuscous pubescence,
longest, above : wings subhyaline, with a faint yellowish tinge basally, nervures
yellow testaceous, stigma black, the spot in marginal cell scarcely evident.
Length 9-10 mm.

$ . — Mandibles except base and apex, pedicellum and joints 1 and 2 of flagellum
beneath yellow, a spot on each side of the mesosternum anteriorly and on each
side of third ventral segment of abdomen also yellow (sometimes the mandibles
are black and the spots on mesosternum and ventral surface of abdomen are
wanting) ; scutellum either entirely black or with a yellow stripe, or two dots of
that color; yellow on pronotum sometimes wanting; fore femora entirely yellow

TRANS. AM. ENT. SOC. XXII.

JUNE. 1895.

182

WILLIAM J. FOX.

beneath ; the % differs principally from that of the following species, maculipennis,
by the less strongly foveolated episternal suture of mesopleurse and the non.
foveolated furrows, that bound the lateral ridges of the posterior face of middle
segment outwardly ; spot in marginal cell much more distinct than in the female.
Length 8 mm.

Colorado. Confertus agrees better with the description of macu¬
latus St. Farg. (non Fab.) than does the preceding species, but is
evidently different from the species to which Smith gave the name
maculipennis, that author stating that maculatus St. Farg. “is quite
distinct from the maculatus of Fabricius.” The specimens which
Smith possessed at the time of renaming maculatus St. Fargeau, ac¬
cording to Smith’s remarks regarding them, also appear different
from St. Fargeau’s, so that it seems to me that confertus probably
represents the maculatus of St. Fargeau and the maculipennis of
Packard (not Smith) and that Smith’s maculipennis is a different
species. It is possible that nit idi vent ris is Packard’s maculipennis,
but that author makes no mention of the yellow spots on middle
segment which are constant in the specimens of the former species
before me. It is a question to be settled by the examination of
either the types of St. Fargeau and Smith.

61. Crabro iiifi<liv entris Fox.

C. nitidiventris Fox, Entom. News, iii, 9, 9 .

9 . — Clypeus dentate, as in ventralis ; bead shining, with distinct, separated
punctures, those on the cheeks and occiput finest, the posterior lateral angles not
prominent, rounded ; posterior ocelli situated in broad, though not deep, depres¬
sion? ; furrow running from frontal depression to fore ocellus deep; pronotum
well developed, but not strongly so as in ventralis; dorsulum with distinct, sepa¬
rated punctures, somewhat closer than those of the front and vertex, shining;
scutellum finely punctured ; episternal suture of mesopleurse distinctly foveo¬
lated ; foveolated furrows bounding the enclosure of middle segment not so broad
as in ventralis, and the longitudinal central channel is transversely ridged, poste¬
rior face transversely rugose apically, the lateral ridges distinct on posterior half
only, and on their outer side is a heavily foveolated furrow, which extends the
entire length of the posterior face; medial and hind tibiae more finely spined
than in the species mentioned above ; abdomen shining, with exception of the
first dorsal and the ventral segments, which are impunctate, finely and somewhat
sparsely punctured, pygidium with large, sparse punctures ; these are more or less
variable, however. Black, including the mandibles and ventral surface of ab¬
domen ; two spots on clypeus, scape and pedicellum. line on pronotum sometimes
interrupted medially, tubercles, episternum mesopleuralis, dot on teguke, basal
half of scutellum, spot on each convexity of the enclosure of middle segment,
tips of fore and medial femora, tibiae except a spot at apex of medial and hind
pairs, tarsi except apical joints, which are brownish, and a transversely elongated
macula on each side of dorsal abdominal segments 2 5, yellow ; greater part of
teguhe reddish testaceous; clypeus, inner orbits beneath and cheeks with silvery

NORTH AMERICAN HYMENOPTERA.

183

pubescence ; head and thorax above with a short, pale fuscous pubescence, that
on the thorax on sides and beneath sparse and pale; wings hyaline, slightly
tinged with yellowish basally and along costa, and a small fuscous dot in the
marginal, at the apex of its appendiculation, and at apex of the submarginal cell,
stigma black, nervures brownish. Length 10-11 mm.

'Jj . — Clypeal teeth a little more prominent than in the 9 : posterior face of
middle segment more rugose, the longitudinal, central furrow stronger and longer,
lateral ridges better developed and extending farther and margined outwardly
by a strongly foveolated furrow ; episternal suture of mesftpl curse more strongly
foveolate ; head and thorax more closely punctured ; greater part of fore femora,
spot on each side of the sternum anteriorly sometimes wanting and joints 1-3 or
4 of flagellum beneath, yellow. Length 9 mm.

New Jersey in July; District of Columbia (Ashmead) ; Illinois:
Algonquin (Nason). The shining body, widely separated maculae
on abdomen and punctuation of head and thorax sparser than in
other species will effectively distinguish this species.

62. Crab i*o veil trails n. sp.

9 . — Anterior margin of clypeus with an indistinct tooth medially, and with a
somewhat more prominent one on each side ; head finely and very closely punc¬
tured, the posterior lateral angles more prominently angular than usual when
viewed from the side; furrow running from the frontal depression to the fore
ocellus distinct, but not very strong; pronotum strongly developed above, ap¬
pearing as a large, transverse fold or swelling; dorsulum punctured about like
vertex, perhaps a little more strongly so ; scutellum more finely and sparsely
punctured ; episternal suture of mesopleune scarcely foveolate ; enclosure of
middle segment with a strong, transverse foveolated furrow at base, the width
of which varies somewhat, the central longitudinal channel is also variable in
width, and has one or more longitudinal ridges, posterior face rugose at apex, the
lateral ridges only distinct on apical half, obsolete above ; middle and hind tibiae
with short, strong spines; abdomen above very finely punctured, most sparingly
so on first dorsal and beneath : punctuation of pygidial area variable, sometimes
with large, coarse punctures and again impunctate. Black ; mandibles except
apex, two spots on clypeus, scape entirely, pedicellum beneath, pronotum above,
a spot on the dorsulum at each side anteriorly, scutellum and a small spot at each
anterio-lateral angle, a spot on each convexity of the enclosure of middle seg¬
ment, tubercles, most of tegulje, episternum mesopleuralis, spot at apex of coxae,
trochanters (the coxae and trochanters are sometimes black), tips of the femora,
the anterior and medial pairs most broadly, the tibiae, except a spot at apex of
hind pair, one or two (or three) basal joints of tarsi, a transverse band on dorsal
abdominal segments 1-5 and the greater part of ventrals 2-5, yellow ; clypeus,
inner orbits beneath and cheeks with a silvery pubescence, not dense, however ;
wings with a yellow tinge, nervures yellow testaceous, stigma black ; thorax
beneath with a short, pale fuscous, sparse pubescence. Length 9-10 mm.

Nevada. The coloration will distinguish this from the other
species of the group.

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

184

WILLIAM J. FOX.

14. Group pinguis.

Ocelli forming a curved line ; mandibles simple, pointed at apex,
not dentate ; both sexes with a pvgidium, which is broad, flat, not
depressed or excavated ; fore tarsi not flattened in % .

Beginning with this group all the species following have the ab¬
domen immaculate. Group pinguis is the only one of Crabro having
the mandibles not dentate at apex and in which the males are fur¬
nished with a pygidial enclosure ; in these characters the group ap¬
proaches the genera Entomognathus and Anacrabro, but is otherwise
distinguished. It represents Lindenius St. F. and Hr.

63. Crabro errans n. sp.

9 . — Anterior margin of clypeus rounded out, indistinctly dentate laterally ;
head a little more finely punctured than in latifrons ; fore ocellus situated in a
strong depression, the furrow running from it to the frontal depression well
marked, hut not so broad as in the species mentioned above; the space between
the fore and posterior ocelli is less than that between the posteriors and the
nearest eye-margin, but not so much as in latifrons: furrow leading from each
posterior ocellus to the inner orbit very distinct ; space between eyes beneath, at
their nearest point of convergence, about equal to a little more than half the
length of the scape ; first joint of flagellum a little longer than the second ; dor-
sulum more distinctly punctured than the front; enclosure of middle segment
well marked, at the base with a transverse, foveolated furrow, from which extend
some longitudinal, coarse stria;, so that there appears to be a semi-circular, de¬
pressed, coarsely striated area at the base of the enclosure, beyond these striations
the enclosure is smooth, shining; furrow forming the enclosure heavily foveo¬
lated ; posterior face of middle segment rugose apically, the lateral ridges distinct,
these margined by a furrow on each side, the outer being distinctly foveolate ;
length and shape of abdomen apparently variable ; in some specimens about as
long as head and thorax united and elongate-ovate, again distinctly shorter than
those parts and broadly ovate ; pvgidium rather acute at apex, flat, not depressed.
Black ; mandibles, except apex, scape in front, pronotum above, tubercles, spot
on scutellum, sometimes absent, tips of fore femora, anterior and medial tibia;,
except a line within, the basal portion of hind tibiae, and basal joint of all the
tarsi yellow, remaining joints of tarsi brownish, those of the hind pair blackish ;
flagellum beneath testaceous ; clypeus, inner orbits beneath, cheeks and thorax
on sides and beneath, with silvei'y pubescence ; legs and abdomen with a silvery
sericeous pile. Length 3.5 -4.5 mm.

% . — First joint of flagellum distinctly longer than the second ; cheeks un¬
armed ; otherwise as in the female. Length 3-3.5 mm.

Colorado (Gillette) ; Las Cruces, New Mexico (Cockerell) ; Illinois
(Robertson 1; District of Columbia; Pennsylvania (Johnson). The
Illinois specimens are the smallest and seem to differ slightly in the
sculpture and may be another species. C. errans may be the C.
{Lindenius) columbianus Kohl, but I cannot determine satisfactorily,
from the description, whether it is that species or not.

NORTH AMERICAN HYMENOPTERA.

185

64. Crabro lsililrons n. sp.

9 .—Anterior margin of ciypeus rounded out, not dentate laterally : punctures
of the front and vertex finer and not so close as in flaviclypeus, the occiput punc¬
tured about the same; fore ocellus situated in a strong depression, the furrowing
running from it to the frontal depression wide and deep, more strongly marked
than in the species mentioned above ; space between the anterior and posterior
ocelli is decidedly less than that between the posteriors and the nearest eye-
margin ; space between the eyes beneath, at their nearest point of convergence,
about equal to five-sixths the length of the scape; first joint of flagellum but little
longer than the second ; dorsulum less closely punctured than the front; enclo-
closure of middle segment distinct, parted by a distinct, longitudinal furrow,
which is broadened basally, each half obliquely striated, at the base a heavily
foveolated, transverse furrow; abdomen as long as head and thorax united; py-
gidium about as usual in this section. Black, including the ciypeus; basal half
of mandibles, scape in front, broadly interrupted line on pronotum above, tuber¬
cles, spot on scutellum, tips of all the femora, especially the anteriors, the tibia;
except a spot within and the tarsi, except last two joints, pale yellow; flagellum
testaceous beneath ; tip of abdomen reddish ; ciypeus, inner orbits beneath,
cheeks and thorax on sides and beneath with dense silvery pubescence; legs and
abdomen with a silvery sericeous pile. Length 4.5 mm.

Texas. Distinct in the greater space between the eyes beneath
and between the hind ocelli and the nearest eye-margin as compared
with that between the fore and hind ocelli.

65. Crabro armaticeps n. sp.

^ . — Ciypeus not carinated, its anterior margin truncate, not dentate laterally ;
head with finer punctures thau in the preceding species, those of the front and
vertex strongest; cheeks beneath armed with a short, stout spine; a well-marked
impressed line extends back from the fore ocellus ; anterior ocellus situated in a
strong depression, the furrow extending from it to the frontal depression, strong;
furrow running from each hind ocellus to the inner orbit distinct ; space .between
the eyes beneath at their nearest point of convergence equal to about four-fifths
the length of the scape; dorsulum punctured about like the front and vertex;
enclosure of middle segment distinct, divided by a broad, shallow channel, which
is narrowed posteriorly, and does not extend to the apex of enclosure, at the base
with a heavily foveolate, transverse furrow, otherwise the enclosure is obliquely
striated, lateral ridges of posterior face distinct and with an outer and inner
foveolated furrow ; abdomen shorter than head and thorax united, last dorsal
segment strongly punctured. Black ; mandibles, except apex, scape entirely,
pedicellum beneath, pronotum above, tubercles, scutellum, tips of all the femora,
all the tibiae, except a dark spot within, and the tarsi, except extreme apex, yel¬
low ; flagellum testaceous, palest beneath ; last abdominal segment reddish ; ciy¬
peus, inner orbits, cheeks and thorax on sides and beneath, with silvery pubes¬
cence ; remainder of insect with a silvery sericeous pile, especially the abdomen ;
wings hyaline iridescent, nervures testaceous. Length 4 mm.

Texas. This will probably prove to be the male of flaviclypeus,
or else latifrons.

(24)

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

186

WILLIAM J. POX.

66. Crabro tlavicl.y pens n. sp.

9- — Anterior margin of clypeus truncate in the middle with a distinct tooth
on each side; head distinctly punctured, most strongly on front and vertex, and
finest on occiput; furrow running from each hind ocellus to the inner orbits and
depression in which the fore ocellus is situated, not so distinct as in pinguis ; a
tolerably well-marked furrow extends back from the fore ocellus; space between
the eyes beneath, at their nearest point of convergence about equal to two-thirds
the length of the scape; first joint of flagellum somewhat shorter than the sec¬
ond ; dorsulum a little more finely punctured than the front and vertex ; enclo¬
sure of middle segment divided by a very wide, longitudinal channel, which is
wider by far than the transverse row of foveas at the base, the two convexities
obliquely striated, posterior face rugose apically, the lateral ridges strong and with
a finely foveolated furrow on each side; abdomen fully as long as the head and
thorax united ; pygidium triangular, flat, not depressed. Black ; clypeus, scape
entirely, pedicellum beneath, pronotum above, tubercles, spot on seutellum, tips
of all the femora, especially the anterior pair, all the tibiae except an elongate,
black spot within and the tarsi, except one or two apical joints, yellow; flagellum
beneath testaceous; clypeus, inner orbits beneath, cheeks, and thorax on sides
and beneath with dense silvery pubescence ; abdomen and legs with a silvery
sericeous pile ; wings hyaline, iridescent. Length 5 mm.

Colorado (Gillette) ; Montana. It is a much more slender species
than pinguis, and is farther distinguished from that species by the
yellow clypeus, greater abundance of silvery pubescence, etc.

67. Crabro g»ini;iias n. sp.

9 . — Anterior margin of clypeus truncate in the middle, not or indistinctly
dentate laterally ; head large, rather longer than usual, strongly punctured on
the front, more finely so posteriorly; a broad, though not deep, furrow runs from
each hind ocellus to the inner orbits; fore ocellus in a strong depression, the im¬
pressed line, which extends from it to the frontal depression, well marked : space
between the eyes beneath, at their nearest point of convergence about equal to a
little more than half the length of the scape ; first joint of flagellum about one-
third longer than the second ; pronotum at the sides with a blunt tooth ; dorsulum
more distinctly punctured than the occiput, but less coarsely so than the front
and vertex ; episternal suture of the mesopleurae slightly sinuous, nearly straight ;
middle segment with the enclosure well marked, within it is obliquely striated and
at the base with a depression, which is angular behind in the middle and longi¬
tudinally ridged ; posterior face rugose apically; medial and hind tibiae tolerably
spinose; abdomen shorter than head and thorax united, pygidium triangular,
rather acute at apex, not depressed. Black, including the seutellum; mandibles
except apex, scape in front, pronotum above, tubercles, tips of fore femora, fore
and medial tibiae in front, hind tibiae at base, two basal joints of fore and medial
tarsi (the remaining joints brownish), and basal joint of hind tarsi, yellow ; joints
2-5 of hind tarsi, blackish ; clypeus, inner orbits below, broadly, with silvery pu¬
bescence; this pubescence is almost lacking on the cheeks and sides of thorax;
abdomen and legs with a silvery sericeous pile. Length 5 mm.

State of Washington. In the specimen before me the mandibles
have the appearance of being worn away, and are so short that when
closed they do not touch, and the space between them would indicate
an impairment of over one-third.

NORTH AMERICAN HYMENOPTERA.

187

15. Group minimus.

Pygidium ( $ ) broad, Hat, not excavated ; ocelli forming an equi¬
lateral triangle ; fore tarsi ( % ) not flattened, the ultimate abdominal
segment in that sex more strongly punctured than the penultimate ;
pronotum crested transversely.

This group is identical with Crossocerus St. F. and Br.

68. Crabro sulcus n. sp.

, — Anterior margin of clypeus as in incavus ; head finely punctured, the front
more distinctly; a distinct, impressed line runs back from the. fore ocellus; first
joint of antennse less than one-third longer than the second ; pronotum rather
sharply crested, at the sides obtusely angular; punctures of the dorsulum some¬
what finer and more separated than those of the front; episternal suture of
mesopleurse sinuous; excavated basal portion of middle segment represented by
a strongly foveolated furrow, the longitudinal furrow of upper surface broad
basally, and much narrowed apically ; all the impressed lines or furrows of mid¬
dle segment foveolate, except fine longitudinal medial furrow of posterior face,
the lateral ridges of the latter with an inner and outer furrow, upper surface,
outside the enclosure, rather coarsely striated ; abdomen shorter than head and
thorax united, the first segment not meeting evenly with the second in conse¬
quence of being slightly contracted at apex ; pygidium narrower at apex than in
incavus, flat as usual, with large, scattered punctures. Black; apical portion of
mandibles reddish ; scape in front, two small spots on pronotum, fore tibiae in
front and extreme base of medial and hind tibiae, yellowish ; rest of legs and
tegnhe, brownish testaceous ; clypeus, cheeks, sides of thorax and beneath sparsely,
with silvery pubescence ; legs and abdomen with a silvery sericeous pile ; wings
hyaline, iridescent, nervures and stigma brownish. Length 5 mm.

Beverly, Massachusetts, July 18. From incavus this species (lifters
chiefly by the metathoracic characters and form of pygidium. I he
color of legs is a good superficial character in distinguishing it. A
male specimen from Long Island, received from Mr. Ashmead, I
refer doubtfully to this species. The pronotum is very strongly an¬
gular at the sides and strongly crested above and the base of the
middle segment is broadly excavated, somewhat as in incavus, and
longitudinally marked with short striae; the mandibles are yellow.
Otherwise it resembles incavus very much.

69. Crabro pictipes n. sp.

'J, . — Head finely punctured, the front more distinctly so, but the difference is
not so marked as in some of the following species; antennse rather long, not at
all clavate, the first joint of flagellum but little, if anything, longer than the
second ; pronotum rather strongly crested above, laterally angulate, though not
acutely; dorsulum finely and closely punctured ; episternal suture of mesopleurse
obtusely angular at about the middle ; middle segment fully as broad as in
incavus, coarsely striated and the medial, longitudinal furrow, which is very
broad at base, assumes a somewhat triangular form ; fore tarsi slightly flattened.

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

188

WILLIAM J. FOX.

but not dilated, bind and medial tibia* but feebly spinose ; abdomen longer than
head and thorax united, last dorsal segment most strongly punctured. Black;
scape entirely, clypeus, mandibles, palpi and surrounding parts, pronotum, tuber¬
cles, spot on scutellum, prosternum, mesosternum anteriorly, fore and medial
coxse and trochanters, fore femora, except a line behind, medial femora in front
and a medial stripe behind, fore and medial tibiae, except a stripe within, hind
tibiae basally and on inner side, fore and medial tarsi and greater part of hind
pair, bright yellow: clypeus with silvery pubescence: thorax beneath with pale
pubescence; abdomen with a sparse, silvery sericeous pile. Length about 6 mm.

Nevada (Morrison). May be the ?> of incavus, but the fact of
color markings being so strikingly different induces me to consider
it as different.

70. Crabro incavus n. sp.

J. — Anterior margin of clypeus indistinctly dentate laterally, with a medi-il
production ; head finely punctured, the front less strongly than in the other spe¬
cies of this section; space between hind ocelli somewhat less than that between
them and the nearest eye-margin ; a distinct impressed line runs back from the
fore ocellus; first joint of flagellum nearly one-third longer than the second;
pronotum indistinctly crested, at the sides obtusely angular ; dorsulum with the
punctures less close than those of the front ; episternal suture of mesopleune
sinuous; middle segment with the basal excavated portion including at least one-
half of the enclosed area and with coarse, somewhat radiating strise, the medial
furrow of upper surface broad, with a few transverse strise basally, posterior face
not striated or roughened, the lateral ridges distinct, particularly beneath, their
outer furrow not foveolated or strongly marked; abdomen about as long as head
and thorax united, at any rate not longer, microscopically punctured, the first
segment almost evenly united with the second; pygidium with large, scattered
punctures. Black ; mandibles apically, reddish ; scape in front, line on pronotum,
tubercles, minute spot on scutellum, fore and medial femora at tips, anterior tibiae
in front, the remaining pairs basally, first two joints of fore and medial tarsi and
first joint of hind tarsi, except apex, yellowish ; clypeus, inner orbits beneath,
cheeks and thorax on sides and beneath sparsely, with silvery pubescence ; legs
and abdomen with a sparse, silvery sericeous pile ; wings subhyaline, paler basally,
iridescent, nervures brownish. Length 5.5 mm.

Colorado (Morrison). The characters of the metathorax distin¬
guish this species at once from its allies.

71. Crabro minimus Pack.

Blepharipus minimus Packard, Proc. Ent. Soc. vi, p. 377, 9 % .

9 . — Anterior margin of clypeus dentate laterally and with a distinct promi¬
nence medially ; head punctured as usual in species of this section ; no impressed
line extending from fore ocellus to occiput; first joint of flagellum distinctly
longer than the second ; pronotum narrowly crested, at the sides angular ; punc¬
tures of mesopl eurse a little stronger and more separated than those of the dor¬
sulum. the episternal suture a little curved ; basal excavation of middle segment
well marked, and, with the lines forming the enclosure, foveolate, the longitu¬
dinal furrow, however, not foveolate, the convexities within the enclosure micro¬
scopically striated as in propinquus, posterior face apparently finely roughened, or

NORTH AMERICAN HYMENOPTERA.

189

transversely striated, the sides of middle segment finely striated, sometimes
smooth ; abdomen slightly shorter than head and thorax united ; pygidium with
large, scattered punctures. Black; mandibles except apex, scape in front, pro-
notum above, tubercles, tips of anterior femora, fore and medial tibiae, except
within, base of hind pair, fore tarsi except apical joints,, and first joint of hind
tarsi at base, yellow ; face, cheeks and sides of thorax with silvery pubescence.
Length between 4 and 5 mm.

Brunswick, Maine (Packard) in August; Massachusetts; District
of Columbia ( Ashmead ) ; Michigan. In the specimen before me
from Massachusetts, which I believe was identified by Packard, al¬
though evidently not one of the types, the pronotum is angular at
the sides. In the original description the pronotum is said to be
“ not angulated at the sides.” While I believe the specimens before
me to be minimus, yet they may be distinct. I have not seen the A,
which seems to lie much like the $ , except that the fore femora are
said to be yellow beneath.

72. Crabro propiuqims n. sp.

9 . — Anterior margin of clypeus slightly dentate laterally, with a median
prominence; head finely punctured, the front most distinctly so; space between
hind ocelli slightly less than that between them and the nearest eye-margin ; a
faintly impressed line extends from the fore ocellus to the occiput ; first joint of
flagellum more than oner-quarter longer than the second ; pronotum well crested,
angular at the sides; dorsulum punctured like the front, except that the punc¬
tures are not so close; mesopleur® a little more distinctly punctured than the
dorsulupj, its episternal suture obtusely angular in about the middle; all im¬
pressed lines of middle segment foveolate, except the large, central channel on
posterior face, the two convex surfaces within the enclosure are microscopically
striated, these striae are so fine as to be difficult to see, except when the insect is
held in certain positions, and are oblique, posterior face with fine though distinct,
transverse striations, the lateral ridges distinct ; abdomen shorter than head and
thorax; pygidium flat, with large, separated, though not sparse, punctures.
Black ; mandibles except apex, scape beneath, pronotum, tubercles, tips of fore
femora, fore and medial tibiae, except a line within, hind tibia; at base, and tarsi
except apical joints, yellow; wings hyaline, iridescent, nervures and stigma
black ; clypeus, inner orbits beneath, cheeks, and sides of thorax more sparsely,
with silvery pubescence ; abdomen with a sparse, silvery sericeous pile. Length
5 mm.

Texas (Birkman). It is somewhat larger than minimus, although
closely related.

73. Crabro maculiclypeus n. sp.

9 . — Anterior margin of clypeus subtruncate, not dentate ; head finely punc¬
tured, as usual the punetation of front most distinct : first joint of flagellum about
one-quarter longer than the second ; pronotum well crested, more so than in lentm,
but less than in scutellatus , the lateral angles obtuse ; dorsulum apparently more
finely and less closely punctured than the front; episternal furrow of mesopleurse

TEANS. AM. ENT. SOC. XXII.

JUNE. 1895.

1 90

WILLIAM J. FOX.

sinuous ; middle segment very much as in lentm, but the longitudinal, medial,
impressed line is not foveolate ; abdomen a little shorter than head and thorax
united, microscopically punctured, narrower than in lentm, the first segment nar¬
rower and longer; pygidium flat, with large, sparse punctures. Black; mandi¬
bles, except apex, scape in front, two spots on clypeus, pronotum, tubercles, scu-
telluin, tips of fore and medial femora, fore and medial tibiae except within, basal
portion of hind tibiae, two basal joints of fore and medial tarsi and first joint of
hind pair yellowish, the apical joints of the fore and medial tarsi yellow testa¬
ceous; clypeus, inner orbits beneath, cheeks and sides of thorax sparsely, with
silvery pubescence ; abdomen with a rather distinct, silvery sericeous pile ; apex
of pygidium reddish, antennae beneath pale testaceous. Length 4.5-5 mm.

% . — Anterior margin of clypeus dentate laterally, and with a medial promi¬
nence ; first and second joints of flagellum about equal in length ; head more
finely punctured than in the 9 : abdomen somewhat clavate. the last segment
with large, coarse punctures ; otherwise very much like the 9 •

Colorado (Morrison and Gillette); Utah. The yellow mandibles,
spots on clypeus serve, superficially, to separate this species from
lentm. Mr. Johnson has given me a specimen collected in either
Pennsylvania or New Jersey, probably the latter State.

74. ('ral)ro lentils n. sp.

9 .—Anterior margin of clypeus with a small, indistinct tooth laterally and in
the middle; head more finely punctured than in scutellatus, the punctures on front
most distinct, while those on cheeks and upper part of head behind eyes are in¬
distinct; antennae tending toward subclavate, the first joint of flagellum about
one-quarter longer than the second ; pronotum tolerably well crested above, but
less so than in scutellatus, lateral angles obtuse ; dorsulum punctured similarly to
the vertex ; episternal suture of the mesopleurse not angulated, but forming a
slight curve ; middle segment with the transverse furrow at base, the lines form¬
ing the enclosure, and the longitudinal medial furrow, all strongly foveolated,
along side the lateral ridges of posterior face, both inside and outside, there is a
strong foveolated furrow and towards the top of the.sides of middle segment there
is another, somewhat oblique, foveolated furrow ; abdomen shorter than head and
thorax united, rather broadly ovate, microscopically punctured, the first segment
short and broad ; pygidium with large, sparse punctures. Black ; mandibles ex¬
cept base and teguhe reddish testaceous; scape in front, pronotum, spot on scutel-
lum, which varies in size, fore and medial tibiae except a line within, basal portion
of hind tibiae and two or three basal joints of the tarsi, yellowish ; wings hyaline,
iridescent, nervures brownish ; clypeus, inner orbits beneath, cheeks and sides of
thorax sparsely, with silvery pubescence. Length 4.5-5 mm.

Algonquin, Illinois (Nason); Utah; Jacksonville, Florida (Ash-
mead). One specimen lacks the yellow on scutellum.

75. Crabro scutellatus Say.

Orabro scutellatus Say, Long’s Second Exped., Appendix, p. 341.®

9. — Anterior margin of clypeus rather broadly rounded out; head finely,
though distinctly punctured, the punctuation of the front being especially promi-

* See remarks under C. impressifrom regarding this species.

NORTH AMERICAN HYMENOPTERA.

191

nent, while that on the cheeks is indistinct ; impressed line extending from frontal
depression to the fore ocellus deep; antennae tolerably slender, the flagellum not
at all clavate, its first joint scarcely one-quarter longer than the second ; pronotum
strongly crested above, the lateral angles obtuse ; dorsulum punctured about like
the vertex, strongly convex : mesopleurse more distinctly punctured, its episternal
suture rather distinctly angulated a little above the middle ; base of middle seg¬
ment with a transverse, foveolated furrow, the impressed lines forming the en¬
closure distinct, as is also the longitudinal, medial line; posterior face divided by
a deep and broad, longitudinal channel, not roughened, lateral ridges becoming
obsolete above; medial and hind tibiae not strongly spinose ; abdomen somewhat
longer than head and thorax united, microscopically punctured above, impunctate
beneath, the first segment decidedly narrowed basally, tending a little in form to
subpetiolate ; pygidum with coarse, scattered punctures. Black; mandibles and
teguhe testaceous ; scape in front, a continuous stripe on pronotum and tubercles,
scutellum, tips of fore and medial femora, medial and anterior tibiae except a line
on inner side; basal third of hind tibiae and two first joints of the tarsi, yellow¬
ish ; wings hyaline, iridescent, nervures and stigma brownish ; clypeus. inner
orbits, cheeks and sides of thorax sparsely, with silvery pubescence. Length 6 mm.

Pennsylvania (Say) ; Colorado. The specimen before me agrees
tolerably well with Say’s description, particularly regarding the yel¬
low of pronotum, which is connected with that of the tubercles. I
should think, however, that this is apt to vary.

76. Crabro similis n. sp.

9 . — Anterior margin of clypeus truncate medially, very slightly or not at all
dentate laterally ; head finely punctured, the front and vertex more closely so
than the region behind the ocelli ; depression extending upward from frontal de¬
pression not strongly marked, almost obliterated before the anterior ocellus ; space
between hind ocelli decidedly less than that between them and the nearest eye-
margin ; first joint of flagellum somewhat more than one-quarter longer than the
second ; pronotum with the crest not very pronounced, at the sides obtusely an¬
gular ; dorsulum punctured like the vertex ; episternal suture of mesopleune a
little, sinuous; enclosure of middle segment well marked, the lines or furrows
forming it well marked and foveolate, as is likewise the longitudinal furrow
dividing the enclosure, this furrow is also broadened basally, two convexities of
enclosure very finely and obliquely striated, posterior face apparently finely and
transversely rugose; abdomen a little shorter than head and thorax united; py-
gidium broad, flat, with large, separated punctures. Black ; mandibles except
apex, and the tarsi yellow ; clypeus, antennae entirely, stripe on pronotum ex¬
tending to and including the tubercles, teguhe, scutellum, metanotum (postscu-
tellum) and legs, except tarsi, which are colored as mentioned above, and hind
femora and tibiae, which are somewhat marked with blackish, fulvous ; apical
margins of abdominal segments broadly, pale testaceous; clypeus, inner orbits,
cheeks and thorax on sides beneath, more or less with silvery pubescence ; ab¬
domen with a silvery sericeous pile. Length 5.5 mm.

-Jacksonville, Florida (Ashmead). Has the facies of C. impressi-
frons. The color markings will distinguish it from the other species
of this group.

TRANS. AM. ENT. SOC. XXII.

JUNE. 1895.

192

WILLIAM J. FOX.

16. Group hispidus.

A single species, differing from those of ater group by the broad,
non-excavated pygidium, and from those of mi minus group by the
very low triangle which the ocelli form, hairy head and thorax, and
the recurrent vein being received by the submarginal cell in its apical
third. The £ is unknown, but will probably present group charac¬
teristics similar to those of the female.

77. C'rabro liispiriiis n. sp.

9 . — Clypeus strongly carinated, the anterior margin with the broadly produced
portion incurved medially ; vertex finely punctured, the front above the depres¬
sion opaque, and has the appearance of being striato-puuctate ; frontal depression
broad and glabrous; ocelli in a low triangle, but not quite forming a curved line,
space between hind pair somewhat less than that between them and the nearest
eye-margin ; first joint of flagellum about one-third longer than the second ;
pronotum at the sides anteriorly with a blunt tooth ; dorsulum with rather coarse,
shallow punctures, longitudinally striated apically; mesopleurse with sparse
punctures; middle segment without a basal enclosure, rugose, particularly above,
the longitudinal furrow on upper surface not reaching the base and bounded by
a strong ridge at either side, lateral ridges of posterior face indistinct, sides of
middle segment tolerably smooth ; tibiae strongly spinose ; wings fusco-hyaline,
iridescent, nervures and stigma black, the recurrent vein received by the sub-
marginal cell between middle and apex ; abdomen microscopically punctured,
apical segments most distinctly, ventrally almost impunctate; pygidium trian¬
gular, rounded apically, coarsely punctured, flat. Black ; tarsi and apical margin
of ventral abdominal segments testaceous; head, particularly between frontal
depression and vertex, and thorax above with coarse, dark fuscous hair, that on
under part of thorax and femora, pale; clypeus only with silvery pubescence.
Length 9 mm.

Mt. Hood, Oregon. One specimen.

17. Group insolens.

Pronotum anteriorly with a strong crest, which terminates later¬
ally in a sharp tooth or projection ; abdomen short, ovate, first seg¬
ment broad ; pygidium narrowed to the apex, acute, depressed or
excavated apically. The head is almost square above, but this may
be but a specific character.

78. C'rabro insolens n. sp,

9 . — Head broader than the thorax, almost square above, in consequence of its
length almost equaling its width, apparently impunctate; ocelli forming a trian¬
gle, the space between the hind pair slightly greater than that between them and
the nearest eye-margin ; frontal depression deep, but no impressed line extending
to the fore ocellus; pronotum with a strongly marked, transverse impression on
each side, anteriorly with a strong crest, which terminates laterally in an acute
tooth or projection, and is highest medially ; dorsulum impunctate, without the

NORTH AMERICAN HYMENOPTERA.

193

usual impressed line on anterior portion ; middle segment smooth, without an
enclosure; posterior face widely channeled down the middle, the lateral ridges
tolerably distinct ; abdomen shorter than head and thorax united, ovate ; py-
gidium acute at apex, convex basally, depressed along the sides and on apical
portion. Black ; mandibles except apex, scape in front, tibiae and tarsi, yellowish
testaceous, the tibiae darker within ; wings hyaline, iridescent, nervuresand stigma
black ; clypeus and lower part of inner orbits, with silveiy pubescence. Length
about 3 mm.

Colorado (Gillette). Its square head, smooth, subopaque head
and thorax and small size will easily distinguish it from the other
small, black species of Crabro.

18. Group planipes.

Fore tarsi of S greatly flattened or distorted, i. e., the first joint
twisted ; otherwise as in group ater. Female unknown.

79. Crabro planipes u. sp.

% . — Anterior margin of clypeus subtruncate, or slightly rounded out in the
middle : head finely punctured, the front more distinctly so, and on occiput most
closely ; space between hind ocelli a little less than that between them and the
nearest eye-margin ; a strongly marked impressed line extends back from the
anterior ocellus ; impressed line extending from frontal depression well marked
and reaching the fore ocellus; first joint of flagellum a little longer than the
second ; pronotum rather higher above than in the other species of this group,
laterally obtusely angular ; dorsulum more strongly punctured than the front;
enclosure of middle segment well marked, basally with numerous, distinct, lon¬
gitudinal strife, posterior face rugose toward apex, the lateral ridges strong ; fore
tarsi flattened, particularly the first joint; abdomen with microscopical punc¬
tures, those on the last dorsal segment somewhat more distinct. Black, including
the mandibles ; scape in front, pronotum, tubercles, scutellum, fore femora, ex¬
cept a narrow dark line behind, medial femora in front, fore tibife except a line
behind, the medial and hind tibiae except the apical two-thirds of posterior sur¬
face, fore tarsi except a dark spot on first joint at apex and last two joints, medial
tarsi almost entirely, and basal half of first joint of hind tarsi, yellow; clypeus,
inner orbits and cheeks and sides of thorax more sparsely with silvery pubes¬
cence ; thorax beneath with longer, pale pubescence. Length 4 mm.

Colorado. Agrees tolerably well with the description of C. Har-
risii Packard, but is evidently distinct.

80. Crabro tarsal is n. sp.

'J, . — Clypeus distinctly carinated, its fore margin witli the medial produced
portion somewhat angular at apex ; vertex with fiue punctures, those on the front
a little more distinct; space between hind ocelli much less than that between
them and nearest eye-margin ; impressed line extending from frontal depression
to fore ocellus feebler than usual, becoming obsolete just before the anterior
ocellus ; first joint of flagellum longer than the second ; the transverse apical
impressed line of pronotum is evident at the sides only, and before it, in about
the middle of pronotum is a short and stronger, impression, which gives the pro-

(25)

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

194

WILLIAM J. FOX.

notum a subangulav appearance at the sides anteriorly; dorsulum more strongly
punctured than the front; enclosure of middle segment strongly marked, the
medial impressed line broadened basally, within the enclosure smooth except the
foveolated base, between it and sides of middle segment rugose, posterior face
rugose toward apex, lateral ridges tolerably distinct and bordered outwardly by
a strong furrow ; first joint of anterior tarsi greatly flattened, twisted, bent in
the middle: wings subhyaline, iridescent, nervures and stigma brownish, recur¬
rent vein received by the submarginal cell beyond the middle; abdomen micro¬
scopically punctured, the apical segments most distinctly. Black ; fore and medial
femora yellowish testaceous, darker above and toward apex, their tibiae and tarsi
yellow, the former with a dark testaceous stripe on outer side, trochanters yel¬
lowish. hind tibiae at base and their tarsi basally, pale yellow; apical margins of
abdominal segments narrowly and obscurely testaceous; clypeus, front, cheeks
with dense silvery pubescence, which is also present on vertex and thorax in a
lesser degree, the thorax beneath and fore femora with long, pale pubescence.
Length 6 mm.

New York. One specimen. Easily distinguished by the entirely
black thorax, shape of first joint of fore tarsi and pale pubescence
on fore femora.

19. Group (iter.

Cuelocrabro Thomson, is apparently represented in America bv the
species of this group. The first abdominal segment inclines slightly
to subpetiolate, being longer and narrower than the second ; the
pygidial area is triangular, narrowed and strongly excavated api-
cally ; ocelli in an equilateral triangle; recurrent nervure generally
received by the marginal cell a little beyond the middle, although
sometimes received more toward the base ; pronotum rounded later¬
ally. The males appear difficult to separate from those of the
miminus group, but the pronotum in that group is crested, and the
last segment of abdomen is more strongly punctured than the pre¬
ceding one, while in this group the last two segments are punctured
about the same.

81. Crabro Iinpressilrons Sm.

Crabro tibialis Say (uec Fabr.), Long’s Second Exp.. Appendix, p. 340.

Crabro impressifrons Smith, Cat. Hym. Brit. Mus., i v, 417..

Blepharipus impressifrons Packard, 1. e., vi, p. 374, 9 .

Blepharipus scutellatus Packard, (non Say), ibid. p. 375. 'J, .

9 . — Clypeus distinctly carinated, the anterior margin with the medial pro¬
duced portion truncate; head very finely punctured, the front most strongly;
space between the hind ocelli somewhat less than that between them and the
nearest eye-margin, all three forming a tolerably low triangle; frontal depression
deep, glabrous, the impressed line extending to fore ocellus also deep; first joint
of flagellum scarcely one-quarter longer than the second; dorsulum more dis¬
tinctly punctured than the vertex ; pronotum apparently impunctate, not trans-

NORTH AMERICAN HYMENOPTERA.

195

versely impressed before apical margin ; middle segment polished, glabrous, the
enclosure distinct, but the impressed lines forming it become obscure toward base
and are not foveolate. the medial furrow perceptibly widened basally, lateral
ridges on posterior face distinct, the outer furrow absent : legs rather stout, the
medial and hind tibiae strongly spin ose ; wings subhyaline, iridescent, with a faint
fuscous cloud in the marginal cell, the recurrent vein received by the submar¬
ginal cell a little beyond the middle ; dorsal abdominal segments 3-5 indistinctly
punctured, beneath the abdomen impunctate; pygidium as usual in the species
of this group. Black; scape, except a line behind, pronotum, scutellum, apex of
fore and medial femora, tibiae and base of tarsi, bright yellow, the tarsi toward
apex somewhat testaceous ; tips of mandibles and tegulie, reddish testaceous, the
apex of the abdominal segments broadly testaceous; clypeus, inner orbits, cheeks,
and sides of thorax with silvery pubescence. Length 6-7 mm.

'J, . — Anterior margin of clypeus with a small medial production, which is
truncate; head more distinctly punctured than in the female, the space between
hind ocelli much less than that between them and the nearest eye-margin ; first
joint of flagellum longer than the second; pronotum before apex with a trans¬
verse impressed line, which is strongest toward the sides; apical margin of the
abdominal segments broadly smooth, obscurely testaceous; fore and medial
femora reddish testaceous, with a dark line above, their apices yellow ; hind tibiae
with a dark spot near apex ; head and thorax above with distinct, pale fuscous
pubescence. Length 5 mm.

Massachusetts; New York; Illinois (Algonquin, Nason). The
species described by Packard as lileph. scutellatus Say, I consider the
l of this species. It is doubtful if this is Say’s species, as it differs
somewhat from the description, and if it were it would necessarily
have to fall, being the % of impres-sifrons.

82. Crabro Harringtonii n. sp.

^ . — Very close to nigricornis, but much smaller; head indistinctly punctured,
including the front and vertex, glabrous; pronotum at the sides rounded, without
a prominence; dorsulum rather indistinctly punctured, but more distinctly so
than the head ; middle segment with the enclosure not well marked, but more
distinct than in nigricornis, posterior face rugose apieally, the medial furrow much
broadened above and pointed beneath, while in nigricornis this furrow is long and
fusiform, lateral ridge distinct and with a strong, outer, lateral furrow, which is
foveolate. Black, including the scape; tips of mandibles and pygidium at tip,
reddish ; fore tibia? in front, medial and fore tarsi, bases of hind tibiae and tarsi
obscurely, yellowish testaceous. Length 4.5 mm.

Ottawa, Canada (Harrington ).

83. Crabro nigricornis Prov.

Blepharipus nigricornis Prov., Add. Hym. Quebec, p. 294, % .

£ .—Clypeus feebly carinated, its anterior margin in the middle crenulated ;
head finely punctured, the front much more strongly so; space between the hind
ocelli a little less than that between them and the nearest eye-margin ; frontal
depression broad and polished, but not deep the line extending to the fore ocellus
distinct as usual ; first joint of flagellum fully one-quarter longer than the second ;

june, 1895.

TRANS. AM. ENT. SOC. XXII.

WILLIAM J. FOX.

196

dorsulum more distinctly punctured than the vertex, but less so than the front;
pronotum at the sides with a small, blunt prominence, which, however, does not
alter its appearance to any extent ; middle segment with scarcely any trace of
an enclosure, the medial impressed line, however, distinct, lateral ridges of pos¬
terior face short and becoming obsolete above and their lateral furrow absent ;
abdomen as usual in the members of this group. Black : scape in front and base
of hind tibiae, yellow ; clypeus, cheeks and sides of thorax with silvery pubes¬
cence; legs with a silvery sericeous pile; wings subhyaline, iridescent, a slightly
darker cloud in the marginal and submarginal cells, nervures and stigma black,
recurrent vein received by the submarginal cell beyond the middle. Length
7.5-8 mm.

'J, . — Medial production of clypeus smaller than in impressifrons : frontal de¬
pression deep; space between hind ocelli distinctly less than that between them
and the nearest eye-margin ; first joint of flagellum longer than the second ; pro¬
notum with a transverse impressed line before its apical margin : fore and medial
legs pale testaceous, their femora with a darker stripe, hind tibiae yellow at base,
testaceous beyond on inner side ; head and thorax above with pale pubescence.
Length 5.5-6 mm.

Canada (Harrington) ; Montana; Virginia. The western speci¬
mens are the smallest, hut otherwise agree with the eastern speci¬
mens. In the original description of this species the antennae are
said to he entirely black, but in a series of seven specimens but one
has not the scape marked with yellowish.

84. C’rabro liigror n. sp.

9 . — Clypeus distinctly carinated, its fore margin in the middle rounded out;
head with fine, distinct, punctures, somewhat stronger on front : space between
hind ocelli about equal to that between them and the nearest eye-margin ;
frontal depression and impressed line as in the preceding species; first joint
of flagellum scarcely one-quarter longer than the second ; pronotum with a
transverse impression or furrow before its hind margin, its punctuation, as well
as that of the dorsulum, a little more distinct than that of the vertex; lines
forming the enclosure of middle segment wide and deep, narrower, however,
than those in cinctipes, the smooth areas, therefore, larger and more distinct,
bordering the enclosure laterally, is a tolerably smooth space, which narrows
toward base of metathorax, and is bounded outwardly by a strong, coarsely
sculptured furrow, which extends down to the apex of middle segment just
outside the lateral ridges of the posterior face, the latter with some trans¬
verse rugse apically; middle and hind tibiae tolerably well armed with spines;
wings subhyaline, strongly iridescent, nervures and stigma brownish ; first two
dorsal segments of abdomen impunctate, the remainder microscopically punctured ;
pygidium as usual. Black ; mandibles at apex, tegulae and apex of abdomen,
reddish testaceous; tarsi testaceous; clypeus with dense silvery pubescence, that
on the cheeks and thorax on sides and beneath, sparse ; legs with silvery sericeous
pile. Length 5 mm.

New Hampshire. One specimen. The absence of transverse im¬
pressed line on proiioiuin, greater space between hind ocelli, clearer

NORTH AMERICAN HYMENOPTERA.

197

wings and sculpture of metathorax will separate this species from
ater.

85. Crabro ciuctipes Prov.

Blepharipus cinctipes Provaneher, taun. Ent. Can. ii, 66/, % .
q . — Clypeus well carinated, the produced medial portion subtruncate ; head
with tolerably fine, distinct, punctures, finer on cheeks and stronger on front ;
ocelli forming a lower triangle than in ater. the space between the hind pair but
little, if anything, less than that between them and the nearest eye-margin, the
depressions in which the ocelli are situated not so well marked as in ater ; frontal
depression and impressed line as in that species ; antennae somewhat shorter, the
first joint of flagellum not quite one-quarter longer than the second ; pronotum
smaller than in ater, and with the dorsulum somewhat more strongly punctured
than the vertex ; mesopleurse with punctuation about similar to that oi the vertex ;
lines forming the enclosure and the longitudinal furrow of middle segment wide
and deep, the enclosed smooth areas consequently small ; bounding the enclosure
laterally is a narrow, smooth space, between which and the sides there is a de¬
pression or furrow, which is rugose, the posterior face with coarse, transverse
rugae, and outside of the lateral ridges a strongly foveolate furrow runs : wings
subhyaline, iridescent, the apical half darkest, nervures and stigma black; first
two dorsal segments glabrous, impunctate. the remaining microscopically punc¬
tured, the fifth most strongly, pygidium convex basally, excavated toward apex.
Black ; mandibles at apex, tegulae and apex of abdomen, reddish testaceous ; tarsi
testaceous ; base of hind tibiae, obscurely, yellow ; clypeus with dense, silvery
pubescence, that on the cheeks and thorax, on sides and beneath, sparse, legs with
a silvery sericeous pile. Length 7 mm.

^ , _ Clypeus distinctly carinated, its anterior margin armed with three strong

prominences, the middle one of which is largest ; space between hind ocelli a
little less than that between them and the nearest eye-margin ; punctuation of
dorsulum and scutellum feebler than in the 9 ; middle segment about as in the
9 . except that the smooth areas within the enclosure are smaller and indistinct;
joints 2-4 of anterior tarsi, 1-3 of medial tarsi, basal half of joints 2 4 of hind
tarsi and their tibiae at base, obscurely, yellowish. Length 6.5 mm.

Canada (Harrington). The greater space between hind ocelli,
sculpture of metathorax, form of clypeus and color of legs in 1
will distinguish this species from C. ater and nigror.

86. Crabro ater Cress.

Crabro ater Cresson, Proc. Ent. Soo. Phila., iv, p. 477, 9 •

Blepharipus ater Packard, ibid, vi, p. 3/4, 9 •

£ _ _ Clypeus distinctly carinated, its fore margin rounded out medially ; head

with distinct, tolerably fine punctures, finer on cheeks and stronger on front ;
ocelli in an equilateral triangle, situated in strong depressions, the space between
the hind pair distinctly less than that between them and the nearest eye-margin .
frontal depression wide and distinct, glabrous, the line extending to the fore
ocellus strong; first joint of flagellum about one-quarter longer than the second ;
pronotum convex above, impressed medially, rounded laterally, tiansversely de¬
pressed before apical margin, and like the greater part of the thoiax is punctuied
similarly to the vertex; mesopleurse more finely and sparsely punctured ; middle

june. 1895.

TRANS. AM. ENT. SOC. XXII.

WILLIAM J. FOX.

198

segment with the enclosure strongly marked, the impressed lines enclosing it
foveolate, as well as its base, where there are sometimes a few short, longitudinal
striae, the medial furrow deep and extending the entire length of the metathorax,
the posterior face with some tolerably coarse, transverse rugae apically ; middle
and hind tibia? with short, stout spines; wings fusco-hyaline, paler basally, iri¬
descent, nervures and stigma black ; abdomen glabrous, microscopically punc¬
tured, above on the fifth segment more strongly, beneath impunctate; pygidium
with strong, separated punctures, convex at base, excavated apically. Black ; tips
of mandibles, tegulse and apex of abdomen sometimes reddish testaceous; cly-
pcus with dense, silvery pubescence, that on cheeks, thorax on sides and beneath,
sparser; legs entirely black, with a silvery sericeous pile. Length 7.5-8 mm.

% . — Glypeus strongly carinated, its fore margin rounded out medially ; bead a
little more finely punctured than in the 9 1 impressed lines on metathorax above
stronger, the posterior face with the apical ruga? stronger, as are likewise the lateral
ridges, and just outside of these is a strong furrow within a short distance of the
metathoracic stigrase (this is less distinct in some specimens than in others); ab¬
domen microscopically punctured above and beneath, the last two dorsal segments
most strongly. Length 6.5 7 mm.

Colorado; Washington; Mt. Hood, Oregon; Brunswick, Maine
(Packard); New Hampshire. The specimen with yellow scape and
base of hind tibiae, recorded from West Virginia, by Packard, is
evidently another species, and very likely C. nigricornis.

20. Group abdominalis.

In this group the abdomen is petiolate, but the first segment is
scarcely nodose at the apex ; pygidium broad, not depressed ; the
head is greatly produced behind the eyes; the ocelli forming a low
triangle, the hind pair being widely separated; sculpture of head
and thorax coarse, mesopleurae ridged anteriorly. In this latter
character the group shows its relationship to the preceding groups,
all of which exhibit it in a more or less developed state. In the
last two groups, occidental! * and pedicellatas, this character is wanting.

87. Crabro abdominalis n. sp.

9 . — Glypeus very short, flat; just behind it, between the an ten me, there is a
short, stout projection ; mandibles large, at the apex armed with two very strong,
diverging teeth, which are extremely large for the size of the species; head cov¬
ered with coarse, rather close punctures, finer on the cheeks; ocelli in a low tri¬
angle, the space between the hind pair decidedly greater than that between them
and the nearest eye-margin ; at the side of each hind ocellus is a wide impression,
which extends back some distance; frontal depression deep, the line extending
to the fore ocellus strongly marked; first joint of flagellum about one-third
longer than the second, and is also much longer than the pedicellum, which is a
ittle longer than the second joint of flagellum ; the cheeks are cut off obliquely
beneath ; pronotum sharply angulate at the sides, with a strong impression in the
middle; thorax coarsely punctured, but more closely so than the head; middle

NORTH AMERICAN HYMENOPTERA.

199

segment at base with an enclosure which is strongly depressed or excavated, with
its surface rugose, and is pointed posteriorly in the middle, and is apparently con¬
nected with a deep, elongate-ovate fovea on posterior face, which is indistinctly
ridged laterally, and above the fovea is strongly and longitudinally striated ; legs
slenderer than in any of the following species, the femora thickened basally as
usual and not medially as in pedicellatus, rvfigaster and Occident <dis ; hind tihias
strongly serrated and spinose; first abdominal segment much longer than the
second, not nodose at apex ; pygidium large, triangular, strongly punctured, not
depressed; wings hyaline, nervures and stigma whitish, the recurrent vein re¬
ceived by the submarginal cell much before the middle. Head and thorax black ;
abdomen except first segment and the second in part, reddish ; mandibles, except
base and apex, which are rufo-testaceous, scape at base and apex, tips of fore
femora, base of medial and hind tibise, and the fore tibite, except a dark stripe
within, the anterior tarsi entirely, and the basal joint of the remaining tarsi,
pale yellow ; clypeus and thorax beneath with silvery pubescence. Length 5 mm.
Texas. One specimen.

88. Crabro asperatns n. sp.

% . — Anterior margin of clypeus sinuous, the projection just behind it distinct ;
mandibles not very large, much less developed than in abdominalis ; head with
exceedingly coarse, scattered punctures, which become finer on the front, the
cheeks finely and closely punctured ; ocelli in a low triangle, the space between
hind pair decidedly greater than the space between them and the nearest eye-
margin, all the ocelli situated in strongly marked pits, the vertex lacking the
lateral impression on each side of the hind pair; frontal depression deep, the im¬
pressed line extending to the fore ocellus wide and deep ; first and second joints
of flagellum about equal in length, the terminal joints somewhat broadened and
obliquely truncate at apex ; cheeks a little rounded out beneath ; the head, al¬
though considerably produced behind the eyes is not so much so as in abdominalis :
pronotum at the sides obtusely angular, impressed medially ; thorax coarsely
punctured, more closely so than the head, the sculpture of sides and beneath
finer ; middle segment as in abdominalis , but the sculpture not as distinct ; medial
and hind tibise tolerably spinose, the bind pair slightly serrate; first segment of
abdomen about one-third longer than the second, the abdomen, in form, clavate,
and much longer than head and thorax united ; wings hyaline, nervures pale
testaceous. Black ; mandibles except base and apex, tips of femora, the base of
the medial and hind tibiae, the fore tibise. except dark line within, their tarsi en¬
tirely and two basal joints of remaining tibise, pale yellow; tegulse testaceous :
clypeus, front, cheeks and thorax on sides and beneath, with dense silvery pu¬
bescence. Length 4 mm.

Las ( 'races, New Mexico (Cockerell), August. Two specimens.
One specimen exhibits a decided metallic bluish tinge on the thorax.

21. Group decorus.

Similar to group occidentalis, but the episternum mesopleuralis
ridged anteriorly ; petiole of abdomen short, stout, but little longer
than the following segment ; pronotum not dentate ; pygidium ( 9 )
broad, Hat, not excavated ; legs not robust, as in the next two groups.
Male unknown.

TRANS. AM. ENT. SOC. XXII.

JUNE. 1895.

200

WILLIAM J. FOX.

89. Crabro ilecorus n. sp.

9 . — Clypeus subcarinated, slightly aud obtusely produced medially ; head
finely and evenly punctured, shining: ocelli in a high triangle; no lateral im¬
pressions on the vertex : frontal depression shining, the impressed line running
from it to the fore ocellus distinct ; first joint of flagellum longer than the second,
the pedicellum not unusually large ; dorsulum more closely punctured than the
head, subopaque: mesopleurae more strongly and less closely punctured; middle
segment with a distinct enclosure above, the furrows foveolate, particularly the
basal one, upper surface smooth, posterior face transversely striated, with distinct
lateral ridges; legs rather slender, the hind tibiae spinose, but scarcely serrate ;
abdominal petiole short, stout, nodose apically, but little longer than the follow¬
ing segment ; pygidium broad, acute at apex, strongly punctured, at apex a little
depressed, but not excavated. Black; mandibles except tips, scape, pronotum,
tubercles, scutellum anteriorly, coxae apically, trochanters, four anterior femora
except a dark spot at base above, fore tibiae entirely and the others except a line
on the medial internally and inner portion of hind pair, the four anterior tarsi
and the basal joints of hind pair, yellow; this color encircles the hind tibiae at
base ; clypeus and thorax on sides and beneath with silvery pubescence ; abdomen
with a sericeous pile; wings hyaline, strongly iridescent ; nervures and stigma
black. Length 4.5 mm.

Las Cruces, New Mexico (Cockerell ), in October.

22. Group occidentalis.

Differs from all the preceding by the non-ridged episternuni meso-
pleuralis; pygidium ( 9) broad, depressed apically; petiole of ab¬
domen shorter than the following segment ; legs robust.

90. Crabro occidentalis n. sp.

9 . — Clypeus slightly convex, depressed laterally, its anterior margin in the
middle with a broad, truncate production ; head finely, but distinctly punctured ;
ocelli in a triangle, the depressions on the vertex distinct, and in addition there
is an impressed line which extends back to the occiput; frontal depression glab¬
rous, broad, the impressed line which extends upward from it deepest just before
the anterior ocellus; second joint of flagellum about one-quarter longer than the
first, which joint is about a third shorter than the pedicellum ; thorax punctured
like the head ; middle segment without a basal semicircular enclosure, but at
extreme base there is a transverse row of strong fovese, the upper surface is parted
by a medial, longitudinal, strongly impressed line, which terminates in a deep
pit at the base of posterior face, the sides of this pit each with a strong ridge,
these two ridges meet at the apex of the pit and extend to apex of middle Segment
in the shape of a Y, the posterior face of middle segment is strongly ridged later¬
ally, and is another ridge connecting the lateral with the medial ridges at the top
of the posterior face, the surface of which is marked with some coarse folds ; legs
robust, the medial and hind tibise with not very strong spines, the hind tibiae but
feebly serrated without; first abdominal segment shorter than the second, nodose
at apex, with two well-developed, parallelo-longitudinal ridges basally, which are
as long as one-third the length of the segment ; pygidium broad, subtriangular,
obtuse at apex, depressed at the sides and apex ; wings subhyaline, iridescent,

NORTH AMERICAN HYMENOPTERA.

201

nervures and stigma brownish. Black ; mandibles, and legs sometimes, rufotes-
taceous; extreme base and apex of scape and first two joints of medial and fore
tarsi, pale yellow; teguhe pale testaceous; elypeus, inner orbits beneath and
cheeks with silvery pubescence ; thorax on sides and beneath and legs with silvery
sericeous pile, which is more obvious in certain lights. Length 8 mm.

£ . — Clypeus less distinctly produced medially, antennae simple; first joint of
medial tarsi simple; abdomen, scape in front, apex of medial and the fore tibiae
anteriorly, and their tarsi entirely, pale yellow. Length about 7 mm.

Nevada. Four specimens labeled Rhopalum occidentals Cress.,
evidently a manuscript name only. Its larger size will distinguish
it from the species of the preceding or the following group.

23. Group pedicellatus.

The two species composing this group are distinguished from the
th ree preceding groups as follows : pygidium ( 9 ) narrow, excavated
its entire length ; anterior margin of clypeus angularly produced.
This is the only group having a petiolated abdomen, in which the
£ antennae are dentate or lobate beneath.

91. t'rabro pedicellat us Pack.

Rhopalum pedicel latum Packard, Proc. Ent. Soc. Phila., vi, p. 380, £ 9-

9 . — Clypeus subconvex, with anterior margin acutely and angularly produced
iu the middle, and on each side with a small tooth ; head finely and evenly punc¬
tured ; ocelli in a triangle, a depression on the vertex on each side of the poste¬
rior pair, which extends to the inner orbits ; frontal depression broad and polished,
a narrow impressed line extending from it to the fore ocellus; second joint of
flagellum nearly three times longer than the first, which is a little more than half
as long as the pedicellum ; thorax punctured about like the head ; enclosure at
base of middle segment semicircular and distinct, and divided by a longitudinal,
strongly impressed line, which extends down on the posterior face in the form of
a deep and wide furrow, the sides of the posterior face ridged ; legs robust, par¬
ticularly the hind pair, the four hind tibiae strongly spinose, and the posterior
pair strongly serrated iu addition ; first segment of abdomen above grooved on
basal half, the posterior portion enlarged and glabrous, in length somewhat longer
than the second segment; pygidium strongly concave or excavated; wings hya¬
line, strongly iridescent, nervures and stigma black. Black ; scape, tubercles, all
the coxae and trochanters, the apical portion of femora, except hind pair, the fore
tibiae entirely, the four hind tibiae at base and the fore and medial tarsi, pale yel¬
low; mandibles yellowish testaceous; flagellum dark fuscous, paler beneath;
tegulte and pygidium testaceous; clypeus, inner orbits below, cheeks and thorax
beneath less densely, with silvery pubescence. Length 5-6 mm.

£ . — Clypeus large and broad, the lateral portions of the anterior margins
slightly revolute, the produced medial portion obtuse atapex : antennae 13-jointed ;
second joint of flagellum twice as long as the third, narrowed basally. and de¬
veloped into a lobe on apical portion beneath ; third joint as long or longer than
the following two united, also much narrowed basally ; basal joint of medial tarsi
laminate within; hind tarsi somewhat flattened, the basal joint curved, and
much broadened apically; abdomen longer and narrower than in the 9 ! hind
femora testaceous at apex, not serrate or strongly spinose ; otherwise like the 9 •

(26)

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

202

WILLIAM .T. FOX.

M aine; Massachusetts; New York ; Connecticut (Packard) ; Al¬
gonquin, Illinois (Nason) ; Ingham County, Michigan (Davis) ; New
Jersey; District of Columbia (Ashmead). The £ antennae are 13-
jointed as far as I can determine, and not 14-jointed as stated by
Packard ; and a careful search failed to show the four minute teeth
on the hind femora mentioned by Packard. That author was prob¬
ably deceived by particles of dirt which I find on the femora of his
type specimen, giving them the appearance of being dentate.

92. Crabro rufigaster Pack.

Bhopalum rufigaster Packard, 1. c., p. 382, £ 9 •

9 . — Clypeus subcarinated, the fore margin but slightly and obtusely produced
in the middle and without the small lateral tooth as in pedicellatus ; head finely
and evenly punctured ; ocelli in a triangle, the lateral depressions on the vertex
faint ; frontal depression not so strong or polished as in the preceding species, and
the line which extends to the fore ocellus fainter: second joint of flagellum about
three times longer than the first, which is not more than half as long as the pedi-
cellum; thorax punctured like the head; middle segment without the basal en¬
closure, the longitudinal impressed line, however, distinct as in pedicellatus, the
lateral ridges of posterior face not well developed ; legs robust, but less so than
in pedicellatus , the hind tibiae serrate and spinose; first abdominal segment as in
the preceding species, except that it is slenderer ; pygidium not concave, but de¬
pressed equally : wings hyaline, iridescent, nervures and stigma black. Black ;
mandibles and tegulae yellowish testaceous; scape, pedicellum and first joint of
flagellum, tubercles, fore and medial legs entirely, the coxae, trochanters and base
of tibiae and tarsi of hind legs, pale yellowish ; greater part of abdomen beneath,
basal half of third and apical portion of fifth and the sixth dorsal segments, red¬
dish (the distribution of red on the abdomen varies) ; clypeus, inner orbits below,
cheeks and thorax on sides and beneath with silvery pubescence. Length 5-7 mm.

^ . — Clypeus much larger and more produced than in the 9 - having the form
of that of pedicellatus, except that it is not revolute; pedicellum as long or longer
than the first and second joints of the flagellum united, third joint of flagellum
nearly as long as the preceding two and pedicellum united, is lobate apically and
narrowed basally, the second joint is produced into a very long, stout tooth
apically, which is in length longer than the joint itself; in addition to the yellow
livery of the 9 > the £ has the clypeus and mandibles yellowish; basal joint of
medial tarsi not laminate within. Length 4.5 mm.

Illinois (Packard); Philadelphia, Pennsylvania (in August);
District of Columbia (Ashmead). Easily distinguished by color of
legs and abdomen, the absence of enclosure at base of middle seg¬
ment, and by the peculiar £ antennae.

NORTH AMERICAN HYMENOPTERA.

203

Unidentified Species .*

93. Crabro (ri^idus Sm.

Crabro frigidus Smith, Cat. Hym. Brit. Mus. iv, 419, 9 ■

“ Female. Length 51 lines. — Black : the head finely punctured, the cheeks
sparingly so, smooth and shining; the ocelli in a curve on the vertex: the scape
and mandibles yellow, the base and apex of the latter black. Thorax : the meso-
t borax longitudinally striated ; the scutellum shining, punctured at the base, and
longitudinally striated beyond ; the metathorax with a subdefined half-circular
space at its base, which is coarsely striated obliquely ; posteriorly it is very coarsely
and deeply rugulose ; a spot on each side of the collar and the tubercles yellow,
the anterior lateral angles of the collar subdentate ; the knees, tibiae and tarsi
yellow, the apical joints of the latter fuscous, the extreme apex of the tibiae with
a ferruginous stain ; the wings fusco-hyaline. Abdomen smooth and shining, the
first segment very delicately punctured, the following segments more distinctly
so ; the second and three following segments with an ovate, pale yellow macula
on each side at their basal margin ; the apical segment produced into an obtuse
spine, which has a sharp, raised margin, and is covered sparingly with oblong
punctures.

“ Hab. — North America.”

May belong to group singularis.

94. Crabro llarrisii Pack.

Crabro pusillus Harris (ncc H.-S.), Cat. Ins. Mass. p. 68 (teste Packard). No
description. •

Blepharipus llarrisii Packard, Proc. Ent. Soc. Phila., vi, 376, .

“ 'k . Head as described in B. impressifrons, the impressed line in front of the
ocelli being present, the front narrow, depressed ; ocelli in an equilateral triangle,
but the head is shorter and more transverse. Orbits and clypeal region silvery,
the latter narrower than in the preceding species [scutellatus = ^ of impress u-
frons ], proportionately longer and more strongly carinated than in B. impressi-
frons. Mandibles slender, bideutate, tip deeply grooved beneath the teeth, black
tip rufo-testaceous. Joints of palpi slender, cylindrical, testaceous. Scape of
antennae long and slender, c.lavate, angular, dark brown above, beneath obscurely
yellow, basal joint of the flagellum brown, not black, filiform, slender, and longer
than in B. impressifrons. Prothorax narrower than in />’. impressifrons, with a
yellow stripe slightly interrupted by a mesial notch. Mesothorax quite smooth,
polished, slightly and sparsely punctured, with long hairs arising from them, en¬
tirely black. Propodeum with a distinct semi-ovate enclosure, with fine striae
diverging from the mesial furrow, which is narrow but distinct ; towards the
flanks the striae become transverse. Wings immaculate, clear, iridescent, costal
nervure dark rufous, posterior nervures testaceous, pterostigma dark. Fore femora
reddish yellow, stained with brown externally : middle femora dark brown, yel¬
low beneath and at tips : hind femora entirely brown ; tibiae yellow, posterior
pair tipped with brown ; two anterior pairs of tarsi yellow, posterior ones dark.
Abdomen cylindrical, very much rounded above, beneath convex, nearly equal¬
ing the head and thorax together in length, longer, narrower and slenderer than
in II. impressifrons, brown-black, edges of the abdominal segments obscurely pale,

* These are not included in the synoptical tables.

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

204

WILLIAM J. FOX.

more so than in the species above mentioned. Length of body, .26 ; head and
thorax together, .13 ; abdomen, 13 inch.

“ Differs from the species with which it has been compared in the
description given above, in its shorter more transverse head and
slenderer body, in its fore femora being entirely yellow above; in
the sculpturing of the propodeum, where in B. impressifrons it is
entirely smooth. The hind tibise are much smoother, scarcely spinu-
lated. It will also be readily distinguished by the want of the pale
testaceous posterior margin of the abdominal segments.

“Cambridge, Mass. (coll. Harris). ‘June and August 15, on
flowers.’ Harr. MS.”

95. Crabro macula! iin Fabr.

Crabro maculatus Fabricius, Ent. Syst. ii, p. 293.

“C. thorace maculate, abdomine atro: nmeulis utrinque quatuor flavis, tihiis
flavis.

“ Habitat in America boreali Mus. Dom. Banks.

“Medius. Antennae nigra? prime articulo flavo. Caput nigrum labio argeuteo.
Thorax niger striga antica, puncto sub alis scutelloque flavis. Abdomen atrum,
nitidum maculis utrique quatuor transversis, flavis. Femora nigra. Tibiae flavse.”

96. Crabro oblongus Pack.

Crabro oblongus Packard. 1. c., p. 88. 9 •

“ 9 • Closely allied to C. singularis, head of much the same proportions, but
narrows a little behind and is throughout narrower as the entire body is. Eyes
a little nearer together; the convexity of the vertex and the grooving of the
front the same as in C. singularis. Antennal groove well marked, polished, on
each side a narrow edging of silken pubescence ; clypeus golden as in C. singularis,
but the hairs are much finer, the lateral lobes are more triangular and silvery ;
mandibles black, with the middle wedge-shaped area twice grooved towards the
base, where in C. singularis it is smooth; palpi slender, joints much longer and
slenderer by one-third than in the other species above named. Antennae as in C.
singularis, scape entirely yellow, hardly as stout, joints of flagellum a little stouter.
Two square, yellow spots on the prothorax ; lateral tubercle yellow; mesothorax
entirely black above with no yellow markings ; surface of the scutum finely
striated ; scutellum and meta-scute Hum highly polished. Propodeum much as in
C. singularis, hut the mesial furrow widens at the base, with similar lateral and
transverse rugae; legs colored much the same; within the hind tibiae a dark
stripe. Abdomen long, sides unusually parallel, giving it an oblong slope [shape ?] ;
with ten yellow fasciae, those on the basal joint being simply dots, those on the
second ring much larger than the succeeding ones, not. wedge shaped, hut ellip¬
tical ; beneath very convex ; tip one-half as long as in C. singularis, the enclosed
triangular upper surface much longer and narrower than in the allied species.
Length of body, 64; head and thorax, .33; abdomen, .31 inch.

“Conn. (Norton). •

“ Differs from C. singularis in its much narrower and slender body,

NORTH AMERICAN HYMENOPTERA.

205

narrower head, larger palpi, with the mandibles grooved towards in¬
sertion in the middle area ; in the wholly black meso-thorax, except
the yellow tubercle, and in the abdomen having an additional pair
of fascia!. The tip of the abdomen is scarcely one-half as large, of
different proportions, being longer and narrower than in C. singularis,
while the abdomen is much flattened above, where in C. singularis
it is much more convex.”

97. Crabro septeiitrionalis Pack.

Crabro septentrional? s Packard, 1. c., p. 110, 9 .

“ 9 • Head short, broad, transversely oblong, being one-half as long as broad,
body long and flattened, finely punctured, vertex flattened, slightly depressed ;
ocelli arranged in a low triangle, which is nearly equilateral ; eyes wide apart as
usual; surface concave in front of the ocelli ; antennal groove well marked; or¬
bits on each sid? lined with a broad track of golden pubescence like the clypeal
region ; clypeus as long as broad, acutely produced on the front edge, but trun¬
cate at tip, strongly carinated, black ; mandibles as usual bidentate, yellow, black
at tip. An ten me of the usual proportion, scape a little compressed and angulated
longitudinally, slightly dilated in the middle, entirely yellow: flagellum black,
basal joint yellowish beneath, abdomen ferruginous. Prothorax with two nar¬
row, yellow stripes, rather remote, one on each side. Thorax broad, somewhat
flattened above; on mesoscutum are two distinct submesial ridges and parapsidal
grooves ; surface finely and closely punctured ; a slight yellow spot, sometimes
absent, on the middle of the meta-scutellum. Tubercle on the flanks as usual.
Enclosure on propodeum distinctly marked, semi-elliptical, mesial furrow with
slightly ridged sides, on each side diverging ruga: of unequal length, posteriorly
the lines more transverse and finer, with a few scattered gray hairs. Tegulse
ferruginous, nervnres dull ferruginous. Fore femora hlaek, tibiae yellow, ferru¬
ginous within, tarsi yellow, shaded on the sides with pale ferruginous, middle
femora black, yellow at tip beneath, tibise yellow, with a large oval black spot
within, hind pair tuberculated and unusually spinulated ; tarsi yellowish, ungues
ferruginous; hind femora black, lined within with a silvery pubescence forming
a regular line of long, silvery, evenly-cut hairs; basal joint of tarsi yellow, fer¬
ruginous at tip, remaining joints wholly reddish. Abdomen broad and flattened,
convex beneath, a little longer than the head and thorax together, with five pairs
of fasciae, those on basal segment reduced to single square dots; those on second
segment are broader than the others, third pair longer, narrower and nearly con¬
tiguous on the mesial line of the body; those on the fifth rings unite to form a
continuous band, more ovate and broader than the others. Beneath black, edges
of segments obscurely testaceous. Length of body, .54 ; head and thorax together,
.26; abdomen, .28 inch.

“ Hudson Bay Territory (coll. Norton) ; Maine, Brunswick, and
head waters of Penobscot (Packard).”

This evidently belongs to group nigrifrons, and is not unlikely
identical with that species.

TRANS. AM. ENT. SOC. XXII.

JUNE. 1895.

WILLIAM J. FOX.

206

98. Crabro iinicus Patt.

Blepharipus unicus Patton. Can. Entom. xi, p. 214, 9 •

“ 9 • Length 5 mm. Black, tips of the mandibles, tegulse, spurs of posterior
tibite and extreme base of the first joint of posterior tarsi, the last joint of poste¬
rior tarsi, the tips of all the cox® and trochanters and the tips of the posterior
femora and tibiae, fuscous. Scape beneath, dot on first joint of flagellum, the
tubercles, the four anterior tibise, excepting a black spot beneath, and the tips of
the four anterior femora, yellow. The four anterior tarsi, excepting the fulvous
apical joint, and the base of the posterior tibiae, whitish. Clypeus black, covered
with a silvery pile ; flagellum fulvous beneath. Thorax beneath and the abdomen
with short scattered pubescence. The abdomen excepting the rufo-piceous en¬
closure on the sixth segment entirely black. Wings hyaline, beautifully irides¬
cent, the nervures and stigma black. Head, thorax and abdomen smooth. The
head as wide as the thorax, and the vertex longer than wide, the front narrow.
The ocelli arranged in an equilateral triangle, each in a separate depression ; from
the anterior ocellus an impressed line extends downwards upon the face and
another extends backwards on the vertex ; on the inner orbit on the vertex is a
slight groove curving at the end to come in a line with a short oblique groove
behind each posterior ocellus. Prothorax sharply angulated beneath, mesopleune
sharply angulated beneath near the coxae. Anterior portion of the mesonotum
with four short lines which extend upon the collar as slight notches; mesonotum
with a slight groove on each side of the disk and with a marginal row of reticula¬
tions over the tegulse. Scutellum quadrate, connected with the mesonotum by
the broad lateral angles between which it is separated by a basal row of large
reticulations. The semi-circular area on base of metathorax is encircled by a row
of similar reticulations and divided by a deep median groove. Similar rows of
reticulations extend in a slightly curved line down upon the mesopleura from the
anterior wings and others mark the lateral sutures of the metathorax. The sides
of the mesothorax beneath and the sides and posterior face of the metathorax
are finely striate; these s trite curve upon the metathorax above, and are repre¬
sented within the enclosure by strife of microscopic fineness. The posterior face
of the metathorax has a deep triangular median depression above, and is more
coarsely rugose beneath. Area on the sixth segment of abdomen not punctured,
depressed medially, the sides much thickened and raised. Abdomen shorter than
the rest of the body, narrow at base, broad near the tip. The posterior tibiae
much thickened.

“New Haven, Conn., July 15th.

“ The elongate head and clavate abdomen give this species a very
pecu liar appearance. ’ ’

Belongs evidently to either group a ter or insolens, or near by.

99. Crabro nigt*r Prov.

Crabro niger Provancher. Add. Hym. Quebec, p. 419, 9 •

“ 9 • Length .26 inch. Black in all its parts, without a spot, polished, shining.
Head transverse, not narrowed behind the eyes. Thorax finely punctured, the
metathorax strongly rugose, with irregular strife basally. Wings hyaline, ner¬
vures brown, stigma black. Teguke pitchy-black. Legs not maculated. Abdo¬
men subpedunculate, polished, shining, smooth, its apical projection [pygidium]
channeled. Ottawa (Guignard).”

Belongs very likely to group ater.

NORTH AMERICAN IIYMENOPTERA.

207

100. C'rabi'A col iiiiibisiims Kohl.

Crabro ( Lindenius ) columbianus Kohl, Ann. k. k. Naturh. Hofm. Wien, vii,
203.

“ Black, head a little bronzed. Mandibles, scape of antenna;, interrupted line
on collar, humeral tubercle, spot on tubercles and greater part of legs, yellow.
Punctuation of head and thorax much denser than in Cr. pygmxus R., and Or.
algira and frontal line deeper. Foveolated suture of episternum mesopleuralis
feebler than in Or. pygmxus. Cordiform area of middle segment large, shining,
divided into two parts by a longitudinally narrow median line, crenate at base,
on sides and posteriorly not divided by a crenulated fossa. Length 5 mm. 5? •”

“To ray knowledge no Crabro of the group Lindenius has been
described from the nearctic region ; neither could I refer none from
the described black bodied species of Crabro to the group Lindenius,
so it almost seemed, as thoitgh this group were not represented in
America. At the present time, however, a female specimen of a
species from British Columbia (Revelstoke) lies before me. It re¬
sembles very much a small specimen of L. pygmceus from the Med¬
iterranean region in respect to size and coloration, and indeed that
variation, in which, besides the yellow humeral tubercles, there is
also a narrow interrupted band on the collar in the middle, and a
spot upon the scutellum of the same color. The color of the legs is
as in pygmceus, namely the tips of the knees citron-yellow, the entire
anterior part of the fore and middle tibiae, the basal half of hind
tibiae and the metatarsus of all pairs. The remaining tarsal joints
brown. Flagellum beneath rust-color. The black of the head
shows that brassy lustre of the IAndenius group, but only to a slight
degree. From pygmceus , columbianus is distinguished principally by
the deeper frontal line, by the much closer, though fully as tine,
punctuation of the head and thorax— in pygmceus these parts are
somewhat sparsely, punctured — further by the more subtile fovea of
the episternal furrow of the mesopleune. The cordiform area is
large and smooth, parted longitudinally by a fine medial line, on the
base furnished with longitudinal wrinkles, which, contiguous to the
postscutellum, show a transverse series of irregular fovea. From
the posterior part of middle segment and from its sides — at all events
in distinction from pygmceus — the boundary of the cordiform area is
not very sharply defined, about as in Cr. ( L .) cegira Kohl. Pygidium
punctured, apically rust-red.”

101. Crabro riigosopiinctat us Prov.

Thyreopus rugosopunctatus Provancher, Hym. Quebec, p. 664, 9 .

Crabro rugosopunctatus Kohl, Zool. .Takrb., Abth. f. Syst. iii.

“ 9 • — Length .30 inch. Black, strongly punctured ; the tubercles yellow,

TKANS. AM. ENT. SOC. XXII.

JUNE. 1895.

208

WILLIAM J. FOX.

ocellated by a black spot, a line on the postscutellum, the tibiae beneath, with five
pairs of spots on the abdomen, yellow. The clypens entirely black with silvery
pubescence, the mandibles and the prothorax without spots. The mesothorax
with deep punctures, but little dense, the metathorax strongly rugose, alveolate.
Wings tolerably enfumed hyaline at the base, their tegulse brownish red. Legs
black, the tibite yellow beneath, the tarsi brownish ferruginous. Abdomen ovate,
strongly punctured, contracted at the sutures, the five basal segments with a yel¬
low spot on each side near the base, these spots broad, truncate (coupees earrees)
at the sides of the abdomen, pointed internally, but all strongly separated, not
approaching on the back ; the fifth segment has also two yellow spots in the mid¬
dle between the two spots. Anal plate short, tolerably convex, with large punc¬
tures. its borders carinated.

“ We received this new species from Mr. Brodie, who sent it from
Toronto ; it is very distinct from all the others by its form and
punctuation.”

This cannot belong to groups tenuiglossus or largior (= Thy-
reopus ) as it is too coarsely sculptured.

102. Crabro elongatus Prov.

Thyreopus elongatus Provancher, Add. Hym. Quebec, p. 293, 'J, .

“ . — Length .45 inch. Black, opaque, finely punctured. Head transversely

quadrate, very short behind the eyes and abruptly narrowed with whitish hair on
the vertex ; the clypeus, mandibles except apex, the scape of the antennae, white
or pale yellow. $cape of antennae strongly dilated at apex, white with a black
band above, sinuated interiorly almost to the apex, the flagellum entirely black,
fusiform, the joint short to the middle, broad, flattened beneath, diminishing
gradually toward the apex. Thorax not maculated; metathorax rugose, with
irregular striae. Wings slightly and uniformly obscured. Anterior legs with the
trochanters white, black at the base and having a spine at apex, the femora di¬
lated, white, black at apex, the tibiae white in front, armed with a large leaf-like
appendage in the form of a shield, the posterior border sinuated and terminating
in a sharp point black at the base, whitish toward the apex with three longitu¬
dinal brown bands, the base of outer side has three transverse, fine, white lines.
Four posterior legs pale yellow, their femora with a black line above and beneath ;
the posteriors with their tarsi yellow, brownish at apex. Abdomen elongate,
polished, brilliant, black with a pale yellow band on each segment, on the basal
segment this band is interrupted and sinuated on each side, broader on the second
and interrupted the same as on the third ; the terminal segment rounded, with a
long, white spine on each side and another one between them ; the band on the
second segment is Inclined forward on the sides, and there is placed in the angle
at apex a small triangular spot quite near the margin ; the third segment has
beneath a spot at each side of its apex. — Cap Rouge.

“ Female still unknown. This species is easily recognized by its
coloration.”

Evidently closely related to C. pallidas mihi.

NORTH AMERICAN HYMENOPTERA.

209

103. C’rafor© signifer Pack.

Thy reopus signifer Packard, Proc. Ent. Soc. Phila. vi, p. 361, $> 9 .

Crilbro signifer Kohl, 1. c. p. 585.

“ % . Head more cuboidal than in T. cribrellifer, being longer and not narrow¬
ing so rapidly behind; the front less deeply excavated, eyes of same size, ocelli
arranged in a similar low triangle: in front of them a transverse line of hairs
extending towards the insertion of the antennae. Clypeus as in T. latipes , a lateral
line of silvery hairs along the front edge of the eyes as usual. Antennae simple,
joints cylindrical, long and slender, sutures well marked, second joint a third
longer than the first or third; joints showing a slight tendency to become flat¬
tened beneath ; black scape yellow, black at base on upper side: mandibles black,
a little yellowish at base. Prothorax above reddish yellow, interrupted in mid¬
dle: thorax much as in T. cribrellifer; a reddish yellow stripe on scu tell uin ; hind
edge of yellow tubercle very convex. Fore coxae, femora and trochanters black,
tibiae expanded into a broad concavo-convex, shield-like plate, as long as broad,
subpentagonal, the angles much rounded, and the end obtuse, being angulated
near the middle of the posterior edge, and near the base of the anterior edge ;
tibiae yellow, but the plate dark, with light lines radiating from the middle of
tibiae, with other independent lines. Tarsi large, well developed, fuscous ; middle
and hind femora black ; tibiae yellow, with an external dark mark, tarsi hiscous.
Abdomen smooth and shining as usual, yellow fasciae as in T. cribrellifer, but they
are broader and heavier, not indented, the stripes being continuous across the
abdomen on the fourth and fifth rings; edge of sixth ring obscurely yellow, tip
spat u late, a little hirsute. Length of body, .42; head and thorax. .20; abdomen,
.22 inch.

“ Brunswick, Maine. August, on flowers of Spircea alba.

“ Easily known by its short, dark, shield-shaped plate or vexhil-
hun, which is as broad as long, and the presence of a yellow band
dn the meso-scutellum ; its simple, non-expanded antennae, the fus¬
cous yellow spot on the thorax, and entire noil-indented abdominal
fasciae. It is of the same size as T. cribrellifer, but a little shorter.

“ 9 . A female specimen received from Mr. Sanborn diffeis fiom
the other sex by its shorter head, more deeply excavated front, and
more convex vertex ; the clypeus is longer, scape of antennal more
thickened, otherwise the color is the same. The thorax is sculptured
and spotted the same, but the enclosure of the propodeum is more
deeply furrowed and rugose on each side of the mesial furrow, i ore
and middle legs colored as in S. pegasus , internal ring and two re¬
mote fascia: one-lialf narrower than in T. pegasus, where they form
a broad, scarcely interrupted band ; terminal band narrower, tip of
abdomen a little broader. This 9 will probably be eventually found
to be the 9 signifer, differing likewise from T. pegasus 9 in its
brighter yellow spots and different arrangement of the abdominal
fascise.

“ Mass. (Sanborn).”

Belongs, no doubt, to group tenuiglossus.

TRANS. AM. ENT. SOC. XXII.

(27)

JUNE, 1895.

210

WILLIAM J. FOX.

SYNOPSIS OF THE SPECIES *

FEMA LES.

Epimerum mesopleuralis armed with a distinct crest or ridge before the middle

coxse, striated, punctato-striate, or striato-punctate . 2.

Epimerum mesopleuralis not crested or ridged, at most with a small, pointed
projection before the middle coxa;, punctured, rarely striated . 33.

2. — Anterior margin of clypeus produced into a strong, truncated process in the

middle . . ....... . 3.

Anterior margin of the clypeus not strongly produced in the middle, usually
rounded . 14.

3. — Head and thorax very coarsely sculptured, being covered with large punc¬

tures. the dorsulum, scutellum and mesopleune frequently with strong

striations interspersed with punctures . 4

Head and thorax not very coarsely sculptured, the head rather finely and
closely punctured ; mesopleurse striated . 7

4. — Pronotum very large, strongly crested, and with the lateral tooth large and

strong; a broad band on dorsal abdominal segments 1-5 and ventral
segments 2-6 more or less, and greater part of femora, yellow.

cinctellus.

Pronotum not remarkably large, its crest, however, sharp, the lateral tooth
small; at the most, the fourth and fifth dorsal abdominal segments
banded, the ventrals never maculated ; greater part of femora black
rarely otherwise . . 5.

5. — Abdomen with strong, distinctly separated punctures; middle segment on

the sides strongly striated . . . ' . 6.

Abdomen finely and closely punctured, shining; middle segment on sides
not strongly striated, smooth medially (none of the abdominal spots
united into bands) . . . . producticollis.

6. — Punctures of the head extremely large, deep and well separated, those on

the abdomen also coarse but less so than on the head ; spots on dorsal

abdominal segments 4 and 5 always separated • . . i nterr uptus .

Punctures of the head strong, but much less than in interrupt ns, and closer,
especially between the ocelli and occiput ; punctures of the abdomen
somewhat finer than those of the head ; dorsal abdominal segments 4
and 5 with the spots united into hands . hellus.

7. — Ocelli forming a low triangle, tending to a curved line ; pronotum distinctly

dentate laterally ; first joint of flagellum distinctly shorter than the

following three combined . 8.

Ocelli forming an equilateral triangle; pronotum rounded at the sides, not
dentate: first joint of flagellum as long, or nearly so, as the combiued
length of the following three joints . 12

8. — Space between the eyes at base of clypeus at least equal to the length of

joints 1 and 2 of flagellum united; transverse impressions of pronotum

narrow, not strong . 9.

Space between the eyes at base of clypeus not equal to the length of joints
1 and 2 of flagellum united ; pronotal impressions broad, especially to¬
ward the sides . 11.

* The species, which the author has been unable to identify, are not included
in this table.

NORTH AMERICAN HYMENOPTERA.

211

9. _ Pronotum sharply margined anteriorly, the lateral tooth large and sharp ;

longitudinal furrow of middle segment not broad, or widened medially
(markings usually whitish ; all the abdominal spots separated ; scape

and mandibles more or less whitish yellow) . . - • moiltamiS.

Pronotum obtusely or not at all margined, the lateral tooth rather small and

blunt; longitudinal central furrow of middle segment broad and dis¬
tinctly widened in the middle . . . . • ■ 1^*

10. _ Pronotum not margined ; posterior face of middle segment not ridged above ;

scape entirely black ; markings on fifth segment united, those on fourth

nearly so . . . . at riceps.

Pronotum distinctly, though not strongly margined ; posterior face of middle
segment bounded above by a distinct ridge; scape in part yellow; mark¬
ings on the abdomen all separated . brunneipes.

11. — Seutellum with sparse punctures on anterior portion, striated posteriorly;

middle segment above generally with tolerably fine striations , thoiax
except the tubercles, rarely maculated ; femora entirely and inner por¬
tion of tibise, black • • • . • • • parvnliis.

Seutellum finely striated throughout; middle segment above with coarse
folds or rugae ; pro- and metanotum always maculated ; femora at tips
and greater part of tibiae, yellow . corrugatus.

12. — First joint of flagellum fully as long as the three following united ; posterior

face of middle segment with feebly developed lateral ridges . 13.

First joint of flagellum scarcely as long as the three following united ; pos¬
terior face of middle segment with scarcely a trace of lateral ridges (no
distinct transverse series of foveae on middle segment). • -nigrifrons.

13. — Middle segment with a transverse series of strong foveae separating the upper

surface from the posterior face ; pedicellum more or less yellow. Species

Eastern . . obscurus.

Middle segment without a distinct series of foveae separating the upper sur¬
face from posterior face; pedicellum black. Species Western.

gracilissimus.

14— Dorsulum not striated, either finely or rugosely punctured . 15.

Dorsulum finely striated, transversely so on anterior portion, longitudinally
on remainder . . . ^2.

15. — Pygidium much narrowed apically, depressed or excavated . lti.

Pygidium broad, triangular, flat, not depressed or excavated . 29.

16. — Abdomen dorsally indistinctly punctured, or impunctate; pygidium always

with a lateral fringe of long, thick hairs; head always finely and closely
punctured • • ■ . . . ... . 1 / .

Abdomen dorsally distinctly punctured, usually strongly so, particularly the

first segment- ..... . - • • .

17_Form broad, the first segment of abdomen not narrowed or lengthened, the
abdominal markings long, narrow; pygidium with the apex obtuse or
rounded ; second ventral segment with large, much scattered punctures • 1 8.

Form narrower, the first segment of abdomen narrowed and lengthened,
though not very strongly so, the abdominal markings short, more or less
rounded ; pygidium acutely pointed at apex ; second ventral segment
with strong, separated, though not scattered, punctures.

pa iiciinaculatus.

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

212

WILLIAM J. FOX.

18. — Middle segment not marked by fovese between the upper surface and the

posterior face, the latter striato-punctate as above; dorsulum with the
punctures close throughout, those on posterior portion but little or not at

all separated . sexinaculatus.

Middle segment with the upper surface and posterior face separated by a
series of strong fovese, the posterior face transversely rugose; dorsulum
with the punctures on posterior portion distinctly separated.

trifosciatus.

19. — Pygidium without the lateral fringe of stiff hairs, or it is but feebly repre¬

sented ; head with strong, sometimes large, separated punctures, except

in one case . . . 20.

Pygidium with the lateral fringe always present and distinct; head with

close, rather fine punctures . . . 25.

20. — Head and first segment of abdomen with strong, separated punctures; pro.

notum with lateral tooth small and indistinct, or absent . 21.

Head rather finely and closely punctured, the punctures of the first ab¬
dominal segment more distinct and separated, but scarcely stronger:
pronotum with a strong, distinct tooth, or rather spine, on each side

(abdominal segments 2-5 with a lateral spot) . spiniferus.

21.— Trochanters, femora and tibiae in part, reddish . 22

Trochanters, femora basally or entirely, black . 23.

22. — Space between the eyes at base of c.lypeus fully equal to the width of the
latter in the middle ; space between hind ocelli somewhat less than that
between them and nearest eye-margin ; no yellow on scutellum or epis-
ternum mesopleuralis (second abdominal segment with a broad band, the
remaining apical segments either narrowly banded, or with the bands
broken into spots, which sometimes are only evident at the sides).

scaber.

Space between the eyes at base of clvpeus somewhat less than the width of
the latter in the middle ; space between hind ocelli about equal to or
slightly greater than that between them and the nearest eye-margin ;
scutellum and episternum mesopleuralis more or less yellow (all the dor¬
sal abdominal segments with a lateral spot, else the second banded and
the spots on remaining segments disappear; first and second segments

usually more or less rufous) . rufipes.

23. — Abdomen with segments 2. 4 and 5 banded with yellow; first segment very
strongly punctured . 24.

Abdomen never banded, with a lateral spot on segments 2, 4 and 5, the third
segment rarely spotted, the second segment still more rarely ; first seg
ment not very strongly punctured . stirpicola.

24. — Wings dark subhyaline, paler basally ; head coarsely punctured, most sparsely
so posteriorly ; femora apically and tibiae entirely, yellow ; tarsi reddish
yellow; third abdominal segment with a small lateral spot, .texanus.

Wings subhyaline, slightly darker apically, with a strong yellow streak
along the costa; head evenly, though strongly punctured, more finely,
and closely so posteriorly ; femora black, except hind pair, which have a
reddish streak within ; tarsi black ; third abdominal segment with a
band . centralis.

NORTH AMERICAN HYMENOPTERA.

213

25 -Dorsulnm with strong punctures, separated on posterior portion ; abdominal
spots nearly always all widely separated, rarely forming bands on last
two segments; middle segment strongly punctured above (femora in part
reddish, trochanters black) . deceinmaculatus.

Dorsulnm closely and rather finely punctured throughout ; abdomen always
more or less banded ; middle segment striated above (femora red in one
case only, in which case the trochanters are also of that color) . -26.

26. — First dorsal segment of abdomen with the punctuation much more distinct

than on the remaining segments . . . . . . . . .

First dorsal segment with the punctuation but little more distinct than on

. . , . 28

the remaining segments .

27. — Ocelli forming a low triangle ; greater part of femora and the tibise in part,

black ; first abdominal segment and the ventrals not spotted : dorsulnm
very compactly punctured . ©dyneroides.

Ocelli forming a curved line; legs red and yellow; abdomen beneath aud
on first dorsal segment spotted ; dorsulum posteriorly with the punctures
less compact...- . . . ; . imfoutus.

28. — Femora black at extreme base only, the tibia? without an internal dark spot ;

abdominal markings large and broad, the ventral segments more or less
maculated . Packarilii.

Femora black except apex, the tibia? with a dark spot within ; abdominal
markings rather slender, the ventral segments not maculated.

clirysarginus.

29. _ Head and thorax not densely hirsute ; abdomen not maculated veutrally.

the first dorsal segment spotted on each side ; pronotum sharply margined
or ridged anteriorly; hind ocelli not placed behind an imaginaiy line
drawn across the vertex from the outer orbit of one eye to the other. 30.

Head and thorax with dense, shaggy hair; ventral segments of abdomen
2-5 almost entirely yellowish, the first dorsal with a transverse band ,
pronotum convex, not margined anteriorly; hind ocelli placed behind
an imaginary line drawn across the vertex from the outer orbit of one
eye to the other . villosus.

30— Head and abdomen rather finely punctured ; dorsulum with the punctures
close and not very coarse . '**■•

Head and abdomen, particularly the first dorsal segment, rather coarsely
punctured ; dorsulum coarsely cribrose (femora more or less reddish).

riififemur.

31 _ Markings yellow; middle segment posteriorly with a yellow spot on each •

side; tibia? not spotted internally; femora above generally with a yellow
stripe reaching almost to the base . bigeniinus.

Markings whitish yellow ; middle segment not spotted ; tibia- with a black
spot within ; basal half of femora usually black . dilectus.

30. _ First joint of flagellum longer than the two following united; marks on

second abdominal segment pointed internally, those on fifth widely
separated . singnlari*.

First joint of flagellum distinctly shorter than the two following united ;
marks on second abdominal segment broadest internally, those on fifth
forming a band . aciculatus.

33. — Abdomen not petiolate, more or less sessile . -jl-

Abdomen petiolate, the petiole more or less nodose at apex . 77.

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

214

WILLIAM J. FOX.

34. — Abdomen always spotted and marked . 35.

Abdomen never spotted, entirely black, or red . ... .58.

35. — Pygidium broad, flat, not excavated or depressed. ... . . .36.

Pygidium narrowed apically and excavated . . 55.

36. — First joint of hind tarsi distinctly longer than the longer spur of hind

tibia; . . . . . . . 37.

First joint of hind tarsi of about equal length to the longer spur of hind
tibiae • • • . . 54.

37. —First cubital transverse vein received by the marginal cell before its middle,

the space between the recurrent nervure and the apex of the submar¬
ginal cell much greater than the width of the latter cell at apex . 38.

First cubital transverse vein received in about the middle of the marginal
cell, the space between the recurrent nervure and apex of submarginal
cell not or rarely greater than the width of the latter cell at apex - . . -41.

38. — First joint of flagellum distinctly shorter than the second ; space between

hind ocelli somewhat less than that between them and the nearest eye-

margin ; pygidium longitudinally rugose . . .39.

First joint of flagellum distinctly louger than the second ; space between
hind ocelli slightly greater than that between them and the nearest
eye-margin; pygidium coarsely punctured . 40.

39. — Pronotum with lateral tooth small and weak ; pronotum entirely, scutellum

and metanotum in part, yellow ; second and third ventral abdominal

segments spotted with yellow . cingulatus.

Pronotum with lateral tooth strong; pronotum with two, sinuous yellow
spots only ; no yellow on scutellum, metanotum, or abdomen ventrally.

argus.

40. — Space between eyes at base of clypeus not as great as the width of the latter

in the middle; dorsulum finely and closely punctured, shining.

a^qiialis.

Space between eyes at base of clypeus fully as great as the width of the
latter in the middle; dorsulum rather strongly and closely punctured,
subopaque ...... . ... iliscretus.

41. — Flagellum of an ten rife (excluding the pedicellum) scarcely twice the length

of the scape, about equal to the space between the eyes on an imaginary

line drawn across the vertex before the hind ocelli . 42.

Flagellum (excluding pedicellum) more than twice longer than scape, greater
in length than the space between the eyes on an imaginary line drawn
across the vertex before the hind ocelli . 45.

42. — Head, thorax and base of abdomen with very long, shaggy, pale yellowish

pubescence ; middle segment coriaceous, strongly furrowed, above in the
middle, apparently striated, though subtilely ; punctuation of head
feeble, the dorsulum with shallow, scattered punctures (first dorsal seg¬
ment maculated with yellow). • ■ . I liy roopliorus.

Head, thorax and base of abdomen nude, except the usual silvery pubes¬
cence on clypeus, thorax beneath, etc. ; middle segment above coarsely
sculptured ; sculpture of head and dorsulum distinct (first dorsal ab¬
dominal segment rarely maculated with yellow) . . 43.

43. — Wings except extreme apex, subhyaline ; punctuation of mesopleurse feebler

and sparser than in incertus ; scutellum rarely maculated with yellow. 44.
Wings on apical half subfuscous; mesopleune with large, separated, though

NORTH AMERICAN HYMENOPTERA.

215

not sparse punctures; scu tell u m and metanotum maculated with yellow ;
segments 2-5, sometimes the first with a large yellow spot on each side,
those on the fifth connected ; all the tarsi yellowish testaceous.

incertus.

44. — Space between the eyes beneath at the base of clypeus about equal to the

length of the pedicellum and first joint of flagellum united, at any rate
not less; mesopleurse, in addition to the punctuation, with a delicate
striation. sometimes scarcely evident (hind tarsi blackish).

teimiglossiis.

Space between the eyes beneath at the base of clypeus somewhat less than
the length of the pedicellum and first joint of flagellum united; meso¬
pleurse not striated (hind tarsi yellowish testaceous) . f iiinidtis.

45. — Sculpture of head and thorax subtile, rather indistinct, apparently with

shallow punctures (middle segment above with longitudinal ridges, less
distinct than usual ; markings whitish ; clypeus and scape, except apex,
black ; head and thorax clothed with thin, pale, long pubescence).

vernalis.

Sculpture of head and thorax, particularly that of the dorsulum, well
marked . 46.

46. — Middle segment above very coarsely sculptured ; with strong, longitudinal

or somewhat oblique ridges, which extend to base of posterior face* • -47.
Middle segment above not so coarsely sculptured ; if it is, then the ridges
become obsolete toward the posterior face (in one case with close, rather
fine longitudinal strise) . 50

47. — Scape entirely black except a narrow ring at apex (space between hind ocelli

slightly less than that between them and nearest eye-margin ; spot on
scutellum : spots on first abdominal segment separated . I’rovaiirlieri .
Scape yellow, at least anteriorly . 48.

48. — Dorsulum rather finely punctured; middle segment above with the furrow

broad, shallow, and usually with a short longitudinal ridge anteriorly in
the middle; pronotum not distinctly dentate, laterally yellow (markings
yellowish white; scape black posteriorly; hind tibise whitish at base

only ; size small) . tenuis.

Dorsulum strongly punctured ; middle segment above with the furrow deep ;
pronotum distinctly dentate laterally . 49.

49. — Space between hind ocelli about equal to or a little greater than that be

tween them and the nearest eye-margin (first abdominal segment with
two separate spots, the marks on second segment pointed internally; tips

of femora not yellow) . ad veil US.

Space between hind ocelli less than that between them and the nearest eye-
margin (first abdominal segment with a broad transverse band, the marks
on the second segment truncate within ; tips of all the femora more or
less yellow) . conspicuus.

50. — Middle segment above with a somewhat triangular depression; fovese of the

episternal suture of mesopleurse less strongly marked than usual ; mark¬
ings white (dorsulum rather sparsely punctured ; space between hind
ocelli about equal to that between them and the nearest eye-margin ;
scutellum and metanotum whitish ; first abdominal segment with a band,
spots on segments 2 and 3 almost touching within, those on segments 4
and 5 uniting within as usual ; ventral segments 2-4 with whitish macn-

lations) . pa I lid iis.

TRANS. AM. ENT. SOC. XXII. JUNE, 1895.

216

WILLIAM J. FOX.

Middle segment above without a triangular depression, at the most with a
transverse series of fovese at the base ; fovese of the episternal suture of
mesopleurse about as usual ; markings yellow (no spot on metanotum) .51.

51. — Space, between hind ocelli decidedly less than that between them and the

nearest eye-margin ; middle segment with a well marked, triangular
enclosure, which is longitudinally and closely striated ; mesopleurse above
in addition to the punctuation, distinctly striated : dorsulum very com¬
pactly punctured (first abdominal segment with a band ; extreme tips of

femora yellow) . pleiiralis.

Space between hind ocelli not much less than that between them and the
nearest eye-margin: middle segment without a well-marked enclosure,
the furrows forming it obsolete basally; mesopleurse (episternum ex¬
cepted) not striated ; dorsulum with the punctures more or less sepa¬
rated . . . . 52.

52. — Clypeus and mandibles black; femora not yellow at tips ; lateral markings

dn dorsal abdominal segments 3 and 4 slender, more or less sinuous ;
second ventral segment only maculated ; hind tarsi except first joint,
blackish (middle segment above with some coarse longitudinal ridges,

which do not reach the base of the posterior face) . monticolus.

Clypeus and mandibles more or less yellow, rarely black ; lateral markings
on dorsal abdominal segments 3 and 4 broad, not at all sinuous ; second
and third ventral segments maculated, hind tarsi yellow testaceous. .53.

53. — Thorax with thick, matted pubescence of a pale fuscous color. Length 14

mm. or over . . . Isn-Sior

Thorax with thin, pale grayish pubescence. Length 10 mm. or less.

viciuus.

54. — Middle segment above with the central, longitudinal furrow wide, shallow

and much broadened basally, the furrow which margins the lateral
ridges of posterior face outwardly not or indistinctly foveolate; epister¬
num mesopleuralis entirely black . cognatus.

Middle segment above with the central, longitudinal furrow narrower, deep,
scarcely broadened basally, the furrow which margins the lateral ridges
of posterior face outwardly, distinctly foveolate or marked by strong,
transverse ridges; episternum mesopleuralis more or less yellow.

liiluris.

55. — Lateral ridges of posterior face of middle segment not strongly developed,

generally obsolete above the middle . • • • -56.

Lateral ridges of posterior face of middle segment very strongly developed,
not obsolete above, usually reaching the furrow which forms the enclo¬
sure on upper surface . . • • nmciilipauiiis.

56 — Viewed from the side the lateral angles of the head are seen to be prominent

and more angular than usual (mandibles, a transverse band on dorsal
abdominal segments 1-5, and ventral segments 2-5, yellow) . ventralis.
Viewed from the side the lateral angles of the head are not more prominent
than usual, rounded (mandibles black, dorsal abdominal segments 2-4
with a large yellow spot on each side, the fifth sometimes with a con¬
tinuous band, ventrals entirely black) . 57.

57 — Head and thorax shining, the punctures tolerably fine, though not close ; the

furrow which margins the lateral ridges of posterior face of middle seg¬
ment outwardly, rather strongly foveolate (episternum of the mesopleurse
and two spots on upper surface of middle segment, yellow).

nitidiveutris.

NORTH AMERICAN HYMENOPTERA.

217

Head and thorax subopaque, the punctures fine and very close ; furrow which
margins the lateral ridges of posterior face of middle segment outwardly
not foveolate (no yellow on episternum mesopleuralis or middle segment).

confertus.

58. — Pygidium broad, flat, not excavated . . 59.

Pygidium narrowed apieally and excavated . 71.

59. — Recurrent nervure received by the submarginal cell in the middle, or about

the middle . (50.

Recurrent nervure received by the submarginal cell between middle and
apex (ocelli forming a low triangle) ; head and thorax with long, dark
shaggy hair; entirely deep black . hispid us.

60. — Ocelli forming a curved line; mandibles simple at apex . 61.

Ocelli forming an equilateral triangle; mandibles dentate at apex . 64.

61. — The two convexities of the enclosure of middle segment smooth, polished

(hind tibiae yellow at base only ; clypeus black) . errans.

The two convexities of the enclosure of middle segment distinctly and ob¬
liquely striated, subopaque . 62.

62. — Hind tibiae yellow at base only: space between the eyes beneath, at their

nearest point of convergence, about equal to a little more than half the

length of the scape; form robust; bead large . piiiguis.

Hind tibiae, except a dark blotch within, yellow ; space between eyes beneath,
at their nearest point of convergence, decidedly greater than half the
length of scape ; form and head as usual in species of this section - • • -63.

63. — Space between the eyes beneath, at their nearest point of convergence, about

equal to two-thirds the length of the scape ; clypeus and scape entirely

yellow . . * - - - - llavicly p«Mis.

Space between eyes beneath, at their nearest point of convergence, equal to
about five-sixths the length of the scape ; clypeus black, the scape yellow
in front only . lat i Irons.

64. — An ten me entirely and four anterior legs, fulvous ; apical margins of abdom¬

inal segments broadly testaceous . si mi I is.

Antenna: in greater part black, as is likewise the greater part of the four
anterior legs . . 65.

65. — Mandibles yellow in greater part . 69.

Mandibles not yellow, black, reddish apieally . 66.

66. — Scutellum almost entirely yellow (rarely black), as is likewise the outer side

of medial tibia: ; yellow on pronotum forming a continuous band- - - -67.
Scutellum black, or with a minute spot; the medial tibiae yellow on basal
portion only ; yellow on pronotum broken into two, widely-separated
spots . 68.

67. — Abdomen somewhat longer than head and thorax united, the first segment

not broad and narrowed basally ; episternal furrow of mesopleurse form¬
ing an angle at about its middle. Length 6 mm . sciitellatus.

Abdomen a little shorter than head and thorax united, the first segment
broad ; episternal furrow of meso pleura: gently curved. Length 4.5-5 mm.

leiitus.

68. — Basal excavated portion of middle segment including at least half of the

enclosed area, with fine longitudinal ridges or striatious ; first .joint of

hind and medial tarsi yellow . incaviis.

TRANS. AM. ENT. SOC. XXII. (28) JUNE, 1895.

218

WILLIAM J. FOX.

Basal excavated portion of middle segment not including half of the en¬
closed area and forms little more than a deep, foveolated furrow; tarsi
not at all yellow . siilcu*.

69. — Scutellum immaculate . .70.

Scutellum maculated with yellow; episternal furrow of mesopleurse sinuous
(clypeus spotted with yellow) . maciiliclypeus.

70. — Episternal furrow of mesopleune forming an obtuse angle at about the mid¬

dle ; two convexities of the enclosure of middle segment smooth, glab¬
rous . propinqiiiiM.

Episternal furrow of the mesopleune not angular, almost straight, or slightly
curved ; the two convexities of the enclosed area of middle segment with
microscopic striations, opaque . minimus.

71. — Pronotum not ridged or margined, rounded at the sides . 72.

Pronotum strongly ridged, dentate laterally ; head quadrate, nearly as long
as broad; tibiae and tarsi yellowish; otherwise black . insolens.

72. — Thorax not maculated with yellow . 73.

Pronotum and scutellum yellow; apical margins of abdominal segments
broadly testaceous . impressifrons.

73. — Enclosure of middle segment very strongly marked, the impressed lines

forming it more or less foveolate . 74.

Enclosure of middle segment not strongly marked, rather indistinct, the
lines forming it not foveolate . 76.

74. — Posterior face of middle segment transversely rugose, lines forming the en¬

closure very broad and deep, Strongly foveolate . 75.

Posterior face of middle segment rugose on apical portion only; lines form¬
ing the enclosure neither broad nor deep, not strongly foveolate (legs and
antennas entirely black) . . aler.

75. — Base of hind tibiae yellowish ; enclosure of middle segmeut bounded out¬

wardly by a narrow, smooth strip, which is broadest basally . ci ncti pes.
Hind tibiae entirely black ; enclosure of middle segment bounded outwardly
by a broad, smooth strip, which is broadest apically . nigror.

76. — Pronotum with a small, blunt prominence laterally; head with distinct

punctures, those of the front particularly so; medial channel of posterior
face of middle segment elongate fusiform ; all the tarsi brownish.

nigricoruis.

Pronotum without a prominence of any sort laterally; head indistinctly
punctured, the front likewise; medial channel of posterior face of mid¬
dle segment broad above, pointed apically ; fore and medial tarsi yellow¬

ish testaceous . Harr 1 n gt o >■ i i .

77. — Epimerum mesopleuralis distinctly ridged anteriorly . 78.

Epimerum mesopleuralis not at all ridged anteriorly . 79.

78. — Petiole of abdomen nearly as long as the two following segments united,
narrow, but little nodose at apex ; head longer than broad and with the
thorax coarsely punctured ; greater part of abdomen red.

abdominalis.

Petiole of abdomen but little longer than the second segment, stout, dis¬
tinctly nodose at apex ; head transverse, broader than long and with the

thorax finely punctured; abdomen entirely black . decorus.

79. — Petiole of abdomen longer than the following segment, slender ; coxge yel¬
low ; anterior margin of clypeus angularly produced . 80.

NORTH AMERICAN HYMENOPTERA.

219

Petiole of abdomen shorter than the following segment, robust ; coxa? black
(anterior margin of clypeus with a slight, square production ; base of

metathorax with a transverse row of short rugae) . occidental is*.

80. — Abdomen black, not banded with reddish ; four anterior legs banded with

black . pedicellatus.

Abdomen black, the anterior half of the third segment reddish ; four ante¬
rior legs yellowish, not banded . ru togas* ter.

MALES.

Epimerum mesopleuralis armed with a distinct crest or ridge before the middle
coxae, striated, punctato-striate or striato-punctate ; antenna; 12-jointed .2.
Epimerum mesopleuralis not crested or ridged, at the most with a small pointed
prominence before the middle coxae, punctured, rarely striated ; antenna;
13-jointed . 31.

2. — Anterior margin of clypeus produced into a strong, truncated process, not so

prominently, however, as in the females . 3

Anterior margin of clypeus not strongly produced medially, usually
rounded . 14.

3. — Flagellum entire, not dentate or emarginate ; sculpture very coarse on head

and thorax : first joint of medial tarsi sinuated ; fore tarsi slightly flat¬
tened . 4.

Flagellum either dentate or emarginate beneath ; sculpture less coarse ; first
joint of medial tarsi not sinuous, differing in the different species; fore
tarsi distinctly flattened . 6.

4. — Flagellum not broadened basally. being narrowed from apex, the second

joint longer than broad; abdomen coarsely punctured . 5.

Flagellum a little dilated basally. the first joint only narrowed ; the second
joint broader than long, as are also several of the succeeding joints: ab¬
domen with tolerably strong, not coarse, even punctures.

producticollis.

5. — Head between the ocelli and occiput covered with very large, deep, non-con¬

fluent punctures, those on the abdomen also strong, but less so than on
the head ; abdomen with one, more rarely with two or three terminal

bands . I liter nipt us.

Head between the ocelli and occiput with coarse, confluent punctures, less
strong than in inter ruptus , those on the abdomen also finer and closer;
abdomen with three, rarely with less, terminal bands . belltis.

6. — Ocelli forming a low triangle, tending to a curved line ; pronotum distinctly

dentate laterally; first four joints of flagellum strongly contracted
basally and produced a little at apex, the first and fourth most strongly. 7.
Ocelli forming an equilateral triangle ; pronotum rounded at the sides not
dentate ; first three or four joints of flagellum produced into a huge
tooth beneath . 12.

7. — First joint of medial tarsi shorter than the three following united, at any

rate not longer . 8.

First joint of medial tarsi longer than the three following united . 10.

8. — Occiput and cheeks strongly and sharply margined behind ; pronotum large,

very strongly crested anteriorly, the lateral tooth large and sharp ; cen¬
tral longitudinal furrow of middle segment not broad ; scape and first

abdominal segment marked with yellowish . liiontanii*.

TRANS. AM. ENT. SOC. XXII. JUNE, 1895.

220

WILLIAM J. FOX.

Occiput and cheeks not strongly margined ; pronotum not very large, nor
strongly margined, the lateral tooth short ; central longitudinal furrow

of middle segment broad . 9.

9. — Scape entirely black ; occiput scarcely margined posteriorly ; markings

whitish yellow . atriceps.

Scape yellow in part; occiput distinctly margined posteriorly; markings
bright yellow . brunneipes.

10. — Pronotum with the transverse furrow very broad and shallow, particularly

toward the sides ; greater part of tihhe yellow, the pronotum and rueta-

notum always spotted . 11.

Pronotum with the transverse furrow not very broad, but deep ; greater part
of tibiae black . parviiliis.

11. — Abdomen broad, not longer than head and thorax united; posterior face of

middle segment distinctly enclosed; scape entirely yellow.

rorriigat us.

Abdomen elongate, longer than head and thorax united ; posterior face of
middle segment not distinctly enclosed in consequence of the ridge,
dividing it from the upper surface being more or less obsolete; scape
only in part yellow . denticulatus.

12. — Joints 1 and 2 of flagellum with a huge tooth or production beneath, the

third and fourth joints much less distinctly toothed, the combined length
of the first two joints as great as that of joints 3 -6; fore femora black

and yellow . 13.

Joints 1-4 of flagellum equally dentate beneath, the combined length of the
first two joints not greater than that of joints 3 and 4 ; fore femora
rufous, striped with black and yellow . . nigrifrons.

13. — Sides of middle segment coarsely striated, upper surface and posterior face

coarsely rugose. Species Eastern . obscuriis.

Sides of middle segment rather finely striated, upper surface and posterior
face only tolerably rugose. Species Western . grucilissi tuns.

14. — Dorsulum not striated, either finely or rugosely punctured . 15.

Dorsulum striated, transversely on anterior portion, posteriorly longitudi¬
nally so (fore femora beneath armed with a sharp spine) . 29.

15. — Abdomen above not distinctly punctured, or impunctate . 16.

Abdomen above distinctly punctured, particularly the first segment . 17.

16. — First and second joints of medial tarsi very strongly produced at apex

within, almost spinose ; first joint of the flagellum distinctly longer than

the second; fore femora reddish anteriorly . sexmaculatiis.

First and second joints of medial tarsi scarcely produced at apex within ;
first joint of flagellum but little longer than the second ; fore femora in
front yellowish . trifasciatus.

17. — Fore tarsi not or but slightly flattened ; the first joint of medial tarsi not

angular . 18.

Fore tarsi distinctly flattened; the first joint of medial tarsi short, more or
less angular . 26

18. — Antennae more or less emarginate beneath . 19.

Antennae entire, subclavate, not emarginate . 28.

19. — Head with large, separated punctures, except in one case; middle segment

laterally, at least the posterior face, with a series of strong fovea* • . • -20.
Head closely and rather finely punctured ; middle segment without lateral
fovese . 24.

NORTH AMERICAN HYMENOPTERA.

221

20. — Abdomen above, particularly the first two segments, coarsely punctured, and

more or less banded . 21.

Abdomen strongly, though not coarsely punctured above, not banded, but
with lateral spots . 23.

21. — First joint of medial tarsi strongly curved ; space between the eyes at base

of clypeus not greater than the width of the latter in the middle; tro¬
chanters and femora reddish, not black . s<;alM»r,

First joint of medial tarsi not or scarcely curved ; space between eyes at
base of clypeus greater than the width of the latter in the middle- • -22.

22. — Legs not at all black, rufous and yellow; mandibles not yellow, but a spot

on episternum mesopleuralis ; abdomen more or less rufous; pronotum

strongly dentate laterally . rulipes.

Coxae, trochanters, femora except apex and spot on tibiae internally, black ;
mandibles spotted with yellow, but no spot on episternum mesopleuralis ;
abdomen not at all rufous; pronotum with the lateral tooth small.

texanus.

23. — Pronotum with a large, strong tooth on each side ; head rather finely and

closely punctured . spin i ferus.

Pronotum but slightly dentate; head with large, separated punctures.

stirpicola.

24. — First joint of flagellum not nearly as long as the two following joints united,

not more than one-quarter longer than the second . 25.

First joint of flagellum nearly as long as the two following united, more
than one-quarter longer than the second (femora at apex broadly, and
greater part of tibite and tarsi, yellow) . <*lirysargimis.

25. — Greater part of femora black ; wings not or but slightly yellowish ; dorsulum

compactly punctured; abdomen ventrally not spotted; first joint of
medial tarsi longer than the three following united. . odyiicroides.
Legs fulvous and yellow; wings strongly yellow on basal half; dorsulum
posteriorly with the punctures tolerably well separated ; abdomen more
or less spotted ventrally ; first joint of fore tarsi shorter than the follow¬
ing three united . imbutus.

26. — First joint of medial tarsi strongly angular on outer margin, shorter if any¬

thing than the following two joints united ; sculpture of dorsulum not
exceeding coarse ; epimerum mesopleuralis usually with a yellow spot-27.
First joint of medial tarsi but slightly angular on outer margin, slightly
longer than the two following joints united ; sculpture of dorsulum
exceedingly coarse ; episternum mesopleural is not spotted .rufifeniur •

27— Segments 2-6 of abdomen with a band; tibiae spotted internally, dilectus.
Segments 4 and 5 (possibly the third sometimes) with a band ; tibiae not

spotted within . bigeininus.

28 — Anterior trochanters armed with a strong spine or tooth beneath : femora

fulvous in greater part ; lateral spots or lines on abdominal segments 1-4,
a narrow band on the sixth, the ventral segments not marked with yellow

lO-maciilatus.

Anterior trochanters simple, not spinose ; femora not fulvous, yellow in

greater part ; all the dorsal abdominal segments with a broad band, the

venti-als entirely yellow . Packardii.

29. — Abdomen without bands, the spots all widely separated . 30.

Abdomen ,l with a broad yellow band at the base of fifth segment, the sixth

entirely yellow.” . aciculat us.

TRANS. AM. ENT. SOC. XXXI. JUNE. 1895.

999

WILLIAM J. FOX.

30. — Head finely punctured above, shining, not or indistinctly striated ; pronotum
declining strongly to the sides, not as wide as the occipital margin of
head, widely, though not very strongly, furrowed ; middle femora be¬
neath and greater part of middle tibiae, black ; no spots on scutellum.

singularis.

Head strongly striato-punctate above, subopaque ; pronotum declining but
little toward the sides, as wide as the occipital margin of head, deeply
furrowed ; greater part of medial femora and their tibiae entirely, yellow ;

scutellum with yellow spots . tr:ipezoi<leus.

31. — Abdomen not petiolate, more or less sessile . 32.

Abdomen petiolate, the petiole more or less nodose at apex . 64.

32. — Abdomen always spotted or marked with yellowish . 33.

Abdomen not spotted, entirely black . 53.

33. — Fore tibiae bearing a large vari-shaped shield . 34.

Fore tibiae without a shield, simple . 48.

34. — Antennae more or less dilated, the joints more or less prolonged beneath ;

fifth joint of fore tarsi with a peculiar appendage . 35.

Antennae simple, fifth joint of fore tarsi without an appendage . 42.

35. — First joint of flagellum broadened to meet the second, longer than the pedi-

cellum, the four terminal joints as long as or longer than the four pre¬
ceding joints united, none of the joints with a long, acute appendix on
outer margin . 36.

First joint of flagellum not broadened to meet the second, not longer, though
broader, than the pedicellum, the four terminal joints together about as
long as the three preceding ones united, joints 2 6 with a large appendix
on outer margin, that on joint 2 narrowest and most curved, that on
joint 6 broadest and not curved (tibial shield brownish, yellow basally,
covered with pale dots, which are at extreme base and apex, linear; scu¬
tellum and metanotum black ; first abdominal segment banded ; medial
legs, coxm excepted, entirely yellow, the first joint of their tarsi about
twice as long as the remaining tarsal joints united) . argus.

36. — First joint of flagellum with a bunch of pale, curled hair beneath . 38.

First joint of flagellum not hirsute beneath . 37.

37. — Tibial shield very large, fully two-thirds as long as the thorax, its under

margin (the fore leg is supposed to be stretched out its entire length)
with a medial lobe, or, in other words, is twice sinuated, black at base,
streaked with paler, the apical two-thirds yellowish, with three large
black streaks ; flagellum broadest by far at the base, gradually narrowed
to the apex ; first joint of medial tibiae distinctly more than one-third
times longer than the remaining joints united ; medial femora with a
yellow streak before and behind . latipes (= coloradensis) .

Tibial shield comparatively small, not more than one-third as loug as the
thorax, its outer margin without a medial lobe, being once sinuated, the
greater portion entirely black, toward the base, however, yellowish,
streaked with darker; flagellum not much broadened, but widest me¬
dially and narrowed basally and apically ; first joint of medial tibiae
somewhat less than one-third times longer than the united remaining
joints; medial femora entirely black . medium.

38. — Medial femora streaked with yellow anteriorly and posteriorly (scape entirely

black behind ; scutellum and metanotum black ; tibial shield brownish

NORTH AMERICAN HYMENOPTERA. 223

on apical two-thirds, greenish basally. where it is narrowly streaked with
yellow ; hind tibiae at base and a line externally, yellow. Size small

8 mm.) . tenuis.

Medial femora yellow at apex only. Size larger . 39.

39. — No tooth or prominence at base of outer margin of fore femora, the latter

with an internal spine only . 40.

A tooth or prominence at the base of outer margin of fore femora ; markings
yellow; medial legs with trochanters and greater part of femora black ;
metanotum marked with yellow ; markings segments 1-3 separated,
those on segment 1 sometimes meeting ; dorsulum compactly'punctured .41.

40. — In shape the fore femora are triangular, being almost as broad at base as they

are long: first joint of medial tarsi not much longer than the remaining
joints united; markings white; medial legs entirely, coxae excepted,
scutellum and postscutellum whitish; marks on abdomen all touching

within . pallidus.

In shape the fore femora somewhat oblong, flattened, fully three times
broader than long ; first joint of medial tarsi about one-third longer than
remaining joints united; markings yellow; greater part of medial
femora black: marks on scutellum and postscutellum; marks on seg¬
ments 1-3 separated . eribrel lifer.

41. — Anterior femora at the base of outer margin with a strong production, which

is somewhat bifurcate at apex ; space between hind ocelli much less than
that between them and the nearest eye-margin : tibial shield basally
yellow, posteriorly greenish, and streaked and dotted with yellow.

pleuralis.

Anterior femora at base of outer margin with a sharp tooth ; space between
hind ocelli but little less than that between them and the nearest eye-
margin ; tibial shield in greater part deep black, basally greenish and
with broken streaks of yellow . largior.

42. — Flagellum short, stout, not much more than twice the length of the scape -43.

Flagellum long, slender, at least half as long again as twice the length of
the scape . 45.

43. — Mesosternum clothed with a dense, white pubescence ; mesopleurae in addi¬

tion to the punctuation, with a delicate striation ; medial tarsi rather
strongly flattened (hind tarsi blackish ; tibial shield brownish yellow at

base and irregularly mottled with darker) . teuuiglossus.

Mesosternum naked ; mesopleurae not striated ; medial tarsi not flattened ;
tibial shield brownish, with several yellow, longitudinal stripes medi¬
ally . . . 44.

44. — Mesopleurae sparsely and rather subtilely punctured ; fore femora beneath

yellow and greater part of tibiae of that color ; metanotum black.

tumid us.

Mesopleurae rather closely and strongly punctured ; fore femora entirely and
greater part of tibiae, black; metanotum yellow . incerJus (?).

45. — Mesopleurae and scutellum coarsely striated ; wings on apical half subfus-

cous (no yellow ou thorax; tibial shield greenish, dotted with whitish or
yellowish, and broadly bordered anteriorly with black). . • virgatus.
Mesopleurae (episternum excepted in one case) not coarsely striated, at the
most striato-punctate above . 46.

TRANS. AM. ENT. SOC. XXII.

JUNE, 1895.

224

WILLIAM J. FOX.

46. — Head and thorax subtilely sculptured, clothed with unusually long pubes¬

cence ; no suture between the epimerum mesopleuralis and the mesoster-

num ; cheeks not keeled beneath . 47.

Head and thorax coarsely sculptured, not pubescent more than usual ; a
suture of about the same proportions as that which separates the epis-
ternum and epimerum mesopleuralis divides the mesopleurse from the
mesosternum and unites with the episternal suture so as to form a sharp
angle ; cheeks beneath along the eye-margin with a slight keel ; clypeus
yellow; tibial shield dark brown, darker anteriorly, marked with nu¬
merous, fine, yellowish streaks . pegasus.

47. — Anterior trochanters very long, almost equaling their femora in length, and

not' much broadened apically; markings yellow; tibial shield broadly
margined with black anteriorly, otherwise yellow, irregularly streaked
with blackish medially : pubescence of head and thorax yellowish brown.

thyreopliorus.

Anterior trochanters not over half the length of their femora and consider¬
ably broadened apically ; markings white ; tibial shield greenish white,
streaked with paler throughout ; pubescence of head and thorax pale
gray . ' . vernalis.

48. — Pronotum strongly dentate laterally; middle segment coarsely sculptured

above, without enclosed smooth areas . 49.

Pronotum not dentate laterally, rounded ; middle segment above with two
convex enclosures . 51.

49. — Scape of antennae compressed, broader by far at apex than at the base, fla¬

gellum stout, not thickened medially nor clavate ; mesosternum with
long, dense, whitehair, wings hyaline (episternum mesopleuralis black). 50.
Scape of antennae cylindrical, not broader at apex than at base, flagellum
tolerably slender, slightly subclavate; mesosternum with short, sparse,
pale silvery pubescence, wings fusco-hyaline (episternum mesopleuralis
and legs, almost entirely, yellow) . hi laris.

50. —Abdomen but little longer than head and thorax united, the sixth dorsal

rarely spotted with yellow ; fore femora beneath, toward base, with
sparse, not long, white pubescence, at least not as long or as dense as that
on the mesosternum laterally (fore and medial femora marked more or

less with black) . cognat us.

Abdomen nearly twice as long as the head and thorax united, the sixth dorsal
segment always spotted with yellow: fore femora beneath with dense,
white pubescence, as long and as dense as that on the mesosternum later¬
ally (fore and medial legs entirely yellow) . cingiilatiis.

51. — The furrow that margins the lateral ridge of posterior face of middle seg¬

ment strongly foveolate . 52.

The furrow that margins the lateral ridge of posterior face of middle seg¬
ment not foveolate (no yellow spots on middle segment), .eonfei’tiis.

52. — Front and vertex rather coarsely punctured, the punctuation of the dorsulum ,

in comparison, distinctly finer and more even (markings pale yellow).

maculipennis.

Front and vertex with even, distinct punctures, those of the dorsulum a little

finer (markings bright yellow) . liitidi ventris.

53. — Ocelli forming a curved line (fore tarsi not flattened) . 54.

Ocelli forming an equilateral triangle . 55.

NORTH AMERICAN HYMENOPTERA.

225

54. — Cheeks not spinose beneath, unarmed; convexities of enclosure of middle

segment smooth, polished ; hind tibiae yellow at base only ; elypeus and

scape posteriorly, black . errans.

Cheeks with a strong spine beneath ; convexities of enclosure of middle seg
ment distinctly striated ; hind tibiae except a blotch within, elypeus and
scape entirely, yellow . ariuaticeps.

55. — Fore tarsi not flattened or distorted . 56.

Fore tarsi greatly flattened, or the first joint twisted or distorted . 63.

56. — Ultimate dorsal abdominal segment distinctly more strongly punctured than

the penultimate . 57.

Ultimate dorsal abdominal segment not, or scarcely, more strongly punctured
than the penultimate . 60

57. — Posterior face of middle segment transversely rugose . 58.

Posterior face of middle segment rugose at apex only (elypeus spotted with
yellow) . maciiliclypeus.

58. — Clypeus and greater part of scape, prosternum and fore coxae and trochan¬

ters, black . 59.

Clypeus and scape entirely, prosternum, fore coxae and trochanters, bright
yel low . pictipes .

59. — “ At the base of propodeum (middle segment) is a row of minute fossae.”

minimus.

Base of middle segment with a wide, somewhat triangular, excavated area,
which is longitudinally ridged ; pronotum very strongly crested, angular
at sides . . .sulcus (?).

60. — Thorax without yellow spots . 61.

Prothorax and scutellum yellow . impressifVoiis.

61. — Enclosure of metathorax with two large, smooth areas . 62.

Enclosure of metathorax with two small, indistinct, smooth areas.

cinctipes.

62. — Legs entirely black; anterior margin of clypeus rounded out in the middle.

aler.

Greater part of four anterior legs reddish ; hind tarsi dark testaceous.

nigricoruis.

63. — Thorax not maculated with yellow ; basal joint of fore tarsi twisted.

tarsalis.

Prothorax, tubercles and scutellum marked with yellow; basal joint of fore
tarsi greatly flattened, but not twisted . plan i pcs.

64. — Episternum mesopleuralis ridged anteriorly; head and thorax coarsely punc¬

tured ; petiole scarcely nodose at apex (antennae simple, not dentate).

asperatus.

Episternum mesopleuralis not ridged anteriorly ; head and thorax finely
punctured . 65.

65. — Antennae not dentate or lobate beneath, simple: petiole of abdomen shorter

than the following segment; coxae black (scape and legs in part yellow;

otherwise black) . occidental!*.

Antennae more or less dentate or laminate beneath ; petiole of abdomen
longer than the following segment; coxae yellow . 66.

66. — Abdomen black, not banded with reddish ; four anterior legs more or less

black; first joint of medial tarsi laminate internally. . pedicel Inf us.
Abdomen black, the third segment banded with reddish ; four anterior legs
entirely yellow; first joint of medial tarsi not laminate- ruf’ogaster.

(29)

JUNE, 1895.

TRANS. AM. ENT. SOC. XXII.

226

WILLIAM J. FOX.

INDEX TO SPECIES.

Anacrabro, 133.
ocellatus, 133.

Crabro, 134.
abdominalis, 198.
acibulatus. 160.
ndvenus , 145, 170, 171.
sequalis, 164.
arcuatus, 155.
argus, 165.
armaticeps, 185.
asperatus, 199.
ater, 197.
atriceps, 140.
atrifrons, 137.
aurifrons, 151.
bell us, 137.
bigeminus, 157.
brunneipes, 140.
centralis, 151.
chrysarginus, 155.
cinctellus, 136.
cinctipes, 197.
cingulatus. 177, 179.
cognatus, 178.
collinus , 151.
coloradensis, 169.
columbianus, 207.
confertus, 181.
confluentus, 136.
conspicuus, 171.
contiguus, 144, 145.
corrugatus, 141.
cribrellifer, 168.
cristatus, 139.
cubiceps, 139.
deeemmaculatus. 151.
decorus, 200.
denticulatus, 143.
dilectus, 156.
discifer, 176.
discretus, 165.
dubius, 136.
effosus, 139, 143.
elongatus, 208.
errans, 184.

excavatus, 149.
flaviclypeus, 186.
frigid us. 203.
gracilissiraus, 144.
gryphus , 169.
Harringtonii, 195.
Harrisii, 203.
hilaris, 179.
bispidus, 192.
honestus , 155.
imbutus, 154.
impressifrons, 194.
incavus, 188.
incertus. 174.
insolens, 192.
interruptus, 136.
largior, 161.
latifrons, 185.
latipes, 169.
lentus, 190.
maculatus, 181, 204.
maeuliclypeus, 189.
maculipennis, 180, 181.
medius, 167.
minimus, 188.
montanus, 139.
monticolus. 163.
niger, 206.
nigricomis, 195.
nigrifrons, 145.
nigror, 196.
nitidiventris, 182.
oblongus, 204.
obscurus, 143.
occidentalis, 200.
odyneroides, 153.
Packardii, 152, 155.
pallidas, 163.
parvulus, 142.
paucimaeulatus, 147.
pauper, 142.
pedicellatus, 201.
pegasus, 171.
pictipes, 187.
pinguis, 186.

planipes, 193.
pleura] is, 162.
producticollis. 138.
propinquus, 189.
Provancheri, 168.
quadrangularis, 159.

4- maculatus , 138.
i-punctatus, 138.
lA-maculatus, 159.
rufifemur, 158.
rufigaster, 202.
rufipes, 149.
rugosopunctatus, 207.
scaber, 149.
scutellatus, 190, 1J4.
septentrionalis, 205.
sexmaculatus, 146.
signifer, 209.
similis, 191.
singularis, 159.
sinuatus , 168.
spiniferus, 148.
stirpicola, 148.
succinct as, 170, 171.
sulcus, 187.
tarsalis, 193.
tenuiglossus, 176.
tenuis, 166.
texanus, 150.
thyreophorus, 172.
tibialis, 194.
trapezoid eus, 160.
tri fascist us, 146.
tumidus, 175.
unicus, 206.
ventralis, 183.
vernalis, 173.
vicinus, 170.
villosifrons, 155.
villosus, 158.
virgatus, 174.

Entomognathus, 132.
texanus, 132.

NORTH AMERICAN DIPTERA.

227

A REVIEW OF THE STRATIOM Y I A AND ODONTO-
MYIA OF NORTH AMERICA.

BY CHARLES W. JOHNSON.

The object of this paper is to try ancl make clear the specific char¬
acters of the species that have been placed in these two genera. That
there are many synonyms in the present list is apparent to all who
have attempted to determine the species. Of the species pertaining
to the United States I have examined a great deal of material, and
carefully studied all available types, but the want of material from
Mexico leave many doubtful and undetermined species. That some
of the species of Bellardi and Gerstaecker, described from Mexico,
are the same as those described from Texas and California, seem
evident, and if so, would have priority ; yet it would be unadvisable
to do this without a thorough study of the Mexican species. While
varying considerable in many structural chararcters, these variations,
when studied collectively, seem hardly sufficient to be of generic
importance. I therefore refrain in this present paper from adopting
any additional genera until typical specimens of described genera
have been studied.

I here wish to express my sincere thanks to Mr. Samuel Henshaw,
through whose kindness I was permitted to examine the type in the
Museum at Cambridge ; to I)r. S. W Williston and Mr. \Y. A.
Snow, of the Kansas University, for the loan of specimens, the
comparing of specimens with Day’s types and valuable information ;
to Prof. C. V. Riley, for the privilege of examining the large collec¬
tion in the National Museum ; to Prof. Lawrence Bruner and Mr.
W. D. Hunter, of the University of Nebraska; and to Prof. J. M.
Aldrich, Mr. D. W. Coquillett, Dr. W. A. Nason, Prof. G. C.
Davis, Airs. Annie T. Slosson and others, for the generous loan of
specimens.

STRATIOM YI A.

Stratiomys Geoffroy, Hist, Nat. d. In. ii. 475, 1764.

Stratiomyia, as amended by Loew, Centur. vi, 4.*

Rather large; black with yellow markings, pile or tomentum va¬
riable. Head hemispherical ; eyes of the male contiguous, but

* “ Geoffroy, in translating Reaumur’s Manche arm.ee, evidently meant to make
the name Stratiomyia and not Statiomys, which is nonsensical” (Osten Sacken).

TEANS. AM. ENT. SOC. XXII.

JULY, 1895.

228

CHARLES W. JOHNSON.

broadly separated in the female ; ocelli prominent, face rounded,
antennae inserted slightly above the middle of the head ; first an¬
tennal joint three or four times as long as the second ; third joint
as long as the first and second together } without style or bristle and
composed of five annuli. Thorax quadrate, pilose in the male, to-
mentose in the female ; scutellum prominent and always with two
spines. Abdomen as long as the head and thorax together ; ovate,
thick and convex, with five visible segments. Legs of moderate
size, with little variation ; tibiae without spurs. Wings brownish
hyaline, veins reddish brown, anterior veins crowded, third longitu¬
dinal vein branched, discal cell emits three veins of equal size, thus
forming five distinct posterior cells ; discal cell subtriangular, first
and second basal cells equal, anal cell always closed, seventh longi¬
tudinal vein rudimentary.

Type of the genus S. chameleon Linne, of Europe.

In comparing our species with those of Europe, we find, as is quite
characteristic of the North American fauna, that the species which
nearest resembles the type are those from the Pacific slope: S. bar-
bata and S. melastoma. This remark also applies to the following
note on Thyreodonta (S. maculosa Loew); and to the genus Odonto-
myia; a western species, O. binotata, being the nearest representative
in size and color to 0. ornata of Europe, although it extends much
further east than the species of Stratiomyia referred to.

While the foregoing description applies to the typical forms, there
are others included that show some modifications, but which are not
of sufficient importance to be of generic value.

Rondani founded the genus Thyreodonta in “eyes hairy,” type S.
strigata Fabr. (S. longicornis Scop.), of Europe. To this would
belong /S', maculosa Loew, of California. But, when we come to our
eastern species, S. badius Walk., we find that only the male has hairy
eyes. This character, therefore, can be considered only of specific
value, or at most a section or group.

There are several species found from Texas to South America
which differ considerably from the typical form in general appear¬
ance, yet lack distinctive generic characters. The head of both male
and female is much wider than the thorax, the third joint of the
antennae flattened and sublaneeolate, the abdomen somewhat flattend,
the anterior third of the wing a reddish brown color, and, as a rule,
they are somewhat smaller. ' Gerstaecker (Linn. Entom. xi, 321)
speaks of this differentiation. It is really a Mexican and South

NORTH AMERICAN DIPTERA.

229

American group, being represented, as far as known, by only one
species within the United States — S. constans Loew, Texas. I pro¬
pose for this the group matabile from its typical and widest distributed
species, S. mutabilis Fabr.

Of the life habits of the American species little is known. Dr.
Williston (Standard Nat. Hist. vol. ii, page 416) gives the following
account : “ The lame lives in water, earth, or decaying wood. Those
of a species of Stratiomyia are known to inhabit some of the western
alkaline lakes, and a European species is found in salt water. The
transformations of S. chameleon in Europe are well known. The
eggs are deposited by the female in layers overlapping each other on
the under side of leaves of aquatic plants. The larvae are naked,
smooth, broader in front, where there is a small head ; the sides of
the abdominal segments are provided with a hook-like foot process.
The last three are much narrowed and elongated, the terminal are
especially so, and at its tip with a circlet of hairs surrounding the
stigmata. When they breathe these hairs enable the larvae to keep
themselves at the surface, and by their means, when folded, they can
retain a small bubble of air and carry it with them beneath the sur¬
face. Their food consists of very small aquatic organisms. They
swim about in vertical, undulatory motions. The pupae are enclosed
in the anterior end of the larval skin, which enables them to float
about freely in the water. They escape at maturity through a slit
in the back which has become exposed to the air.” The perfect in¬
sects are generally found on flowers, and are noticeably more numer¬
ous in the vicinity of streams and ponds.

The following note from a recent article by Prof. Lawrence
Bruner ( Evening Call, Lincoln, Neb., April 5, 1895) on the peculiar
habit of a Stratiomyid larva may prove of interest. The specimens
were found by Mr. John C. Hamm in the thermal springs of Ninta
County, Wyoming. * * * “At the time I saw the larvse in their
native habitation I did not have a thermometer with which to take
the temperature, but the water was so hot where I saw them I could
not hold my hand in it. My best judgment is, and was at the time,
that the water was not more than twenty or thirty degrees below the
boiling point.” * * * “In color they are dull gray, in form much
flattened, and in size the length of the line below the figure (15 mm.).
The two specimens examined by me are more or less incrusted with
sulphur and other mineral substances.”

The number of species recorded from North America, in Osten

TRANS. AM. ENT. SOC. XXII.

JULY. 1895.

230

CHARLES W. JOHNSON.

Sackeii’s Catalogue, is thirty-nine (ten from Mexico). Bigot lias
since described six, making a total of forty-five species. Macquart’s
S. Jiavipes, S. puchella and S. vicina, I can only refer to Odontomyia
flavicornis Oliv. This synonymy has been caused by the unusual
length of the first antennal joint, and in the great difference between
the male and female. Loew’s 8. angularis, 8. marginalia and S.
nigriventris, are undoubtedly the same as S. meigenii Wied. Loew’s
8. notata and 8. quadrigemina are only color varieties of 8. nonnula
Loew. 8. lativentris and 8. obesa Loew, are synonyms.

8. insignia is the % of 8. maculosa Loew (Osten Sacken, Western
Diptera, 203).

8. lineata Macq. I refer doubtfully to 8. meigenii. Of Walker’s
species 8. badvus, being positively identified, has priority over 8.
picipes Loew.

S. nymphis I refer doubtfully to 8. laticeps Loew, the other five
(three Mexican) remain unidentified. For a want of material none
of the Mexican species (except 8. main bills Fabr.) have been identi¬
fied ; but, as they should he studied conjointly, I have added, for
convenience, a description of all the species.

Of Bigot’s species 8. dentata 9 and 8. lacerta $ are unquestion¬
ably 8. maculosa Lw. 8. diademata and S. calopus equals /S', bar-
bata Lw. A very black species from Weber Lake, California, I
refer to 8. nevadce. 8. simplex remains unidentified.

In the following table I have only included those Mexican species
that from the descriptions seem undoubtedly distinct.

1. — Head of 'J, 9 narrower than the thorax . 2.

Head of % 9 wider than the thorax . 6.

2. — Eyes of ^ 9 glabrous . 3.

Eyes of % pubescent . 13.

3. — Antennae; third joint but slightly flattened . 4.

Antennae; third joint greatly flattened and sublanceolate . 14.

4. — Abdominal spots usually connected on the fourth segment of the male, and

always connected on the fourth and usually on the third segment of the
female . . 5.

Abdominal spots never connected on the fourth segment of the % and rarely
connected in the 9 . barbata Lw.

5. — Fifth segment with a large keystone-shaped marking. melanost oma Lw.

Fifth segment with a dorsal line and spot at the anterior angle.

fativentris Lw.

6. — Abdomen; lateral triangular markings on the second and third segments,

widely connected at the lateral margin . Bruneri n. sp.

Abdomen; lateral subtriangular markings on the second and third segments
not connected at the lateral margins . laticeps Lw.

NORTH AMERICAN DIPTERA.

281

7. — Scutellum yellow, or with base narrowly black . . 8.

Scutellum black, or with a narrow apical margin of yellow . 10.

8. — Fourth segment with a small dorsal triangle, vertex of the 9 black.

iionniila Lw.

Fourth and fifth segments with [small dorsal triangles, vertex of the 9
yellow . norma Wied.

9. — Dorsal triangles on the third and fourth segments, that on the fourth (and

sometimes the third) connected with the lateral margins.

uniliinhata Lw.

Dorsal triangle wanting on the third, that on the fourth obsolete or wanting,
wings unusually dark . sonar ia Lw.

10. — Abdomen with narrow lateral markings . 11.

Abdomen wholly black % (9 unknown) . nevatla* Bigot.

11. — Fifth segment with a dorsal line; lateral markings on the segments of the

9 very narrow . . Jloi genii Wied.

Fifth segment with a dorsal triangle ; lateral markings on the segments of
the % 9 prominent . apicnla Lw.

12. — Pile on the thorax unusually long and dense ; abdomen wide, third and

fourth segments very convex . discalis Lw.

Pile on the thorax normal ; abdomen narrow, and third and fourth segments
noticeably convex . quaternaria Lw.

13. — Face of 9 yellow, ^ black; abdomen with a wide, maculated or indentated

lateral margin ; variable . maculosa Loew.

Face of ^ 9 yellow ; with a longitudinal line of black ; abdominal mark
ings transverse, the same in both sexes ; eyes of 9 glabrous.

l>a<lius Walker.

Group mutabile.

14. — Abdomen ; bauds on the second segment interrupted, third and fourth con¬

tinuous . 15.

Abdomen ; fourth and fifth segments only with wide yellow bands.

miitahilis Fabr

15. — Scutellum % black . 16.

Scutellum % 9 yellow... . const a its Lw.

16. — Abdomen ; bands on the second and third continuous.

Oerstaeekeri Bell

Abdomen; second segment with two large spots . bimaculata Bell.

St rut iomyia barbata Loew (PI. iii, figs. 1 and 2).

Stratiomyia barbata Loew, Centur. vi, 9.

Straliomys diademata Bigot, Ann. Soc. Ent. France, xxxviii, 23.

Stratomys calopus Bigot, Ann. Soc. Ent. France, xxxviii, 23.

'k 9 • Length 13 mm. 'J, . — Face black, with blackish pile around the base
of antennae, and yellowish pile below ; a large spot on each side of the facial
prominence, and the lateral and lower part of the occiput yellow ; the occiput is
laterally very prominent, apparently ending abruptly towards the vertex, where
it becomes black and obscured by the eye, which extends to the edge of the ver¬
tical angle. Antennae black. Thorax black, with blackish pile ; scutellum yel¬
low. base and sides black, spines reddish ; halteres green. Abdomen black, with
yellowish pile and lateral markings, second segment with a large triangular spot

TKANS. AM. ENT. SOC. XXII.

JULY. 1895.

232

CHARLES W. JOHNSON.

at the posterior angles, third and fourth with an oblong spot at the lateral poste¬
rior margins narrowly reaching the posterior angles; a large central triangle on
the posterior half of the fifth; venter black, the segments with a wide posterior
margin of greenish yellow; femora black, with long, black pile; tips of the
femora, the tibice and tarsi, reddish ; tibise with a medial band of brown. Wings
dusky hyaline, veins yellowish ; discal cell emits three veins.

9- — Face, front and vertex black, with yellow pile; a large, square spot on
each side of the facial prominence, two ovate spots on the front, and one on each
side of the ocelli extending over the vertical angle onto the cervex, and the occi¬
put yellow. In some specimens the yellow of the face and front are connected
at the orbits, in which case the face and front might be described as yellow, lon¬
gitudinally divided by black ; scutellum yellow, base narrowly black ; the lateral
abdominal markings usually the same as those of the male, though occasionally
the markings on the fourth segment are narrowly connected.

Seattle, Wash. (Prof. O. B. Johnson); Mt. Hood, Oregon (Mor¬
rison, Univ. Ivans.); Laramie, Wyoming, July 17 (Univ. Neb.);
Colorado, July 8 (Amer. Ent. Soc. ); Craig’s Mt. Idaho; British
Columbia ( Aldrich ).

Two females from Colorado, and two out of eight of the males
from Craig’s Mt. Idaho have the markings on the fourth segment
n arrowly connected .

Stratiomyia nielanostoma Loew (PI. iii. figs. 3 and 4).

Stratiomyia melanostoma Loew, Oentur. vi, 10.

Length % 9 12-15 mm. 'J, . — Face yellow, with light yellow pile; frontal
triangle, medial facial line and mouth, black ; occiput totally yellow, lateral por¬
tions somewhat dilated. Antennae black, second joint brownish. Thorax black,
with blackish pile; a tuft of yellowish pile on the pleura below the humeri ;
scutellum yellow, base narrowly black, spines reddish. Abdomen black : a lateral
posterior triangle on the second, an elongated spot on the lateral posterior mar¬
gins of the third and fourth, which narrows toward the lateral margins, usually
connected on the fourth ; and a central disc or subtriangular spot on the fifth
segment yellow ; venter yellow, base of the segments variably marked with
black, which is more conspicuous on the third and fourth segments; femora black,
tips of the femora, the tibiae and tarsi, yellowish ; tibiae obscurely an nulated with
brown. Wings brownish hyaline.

9 . — Face, front and occiput, yellow ; vertex black, with a yellow spot on each
side of the ocelli extending over the vertical angle ; there is a narrow black
fascia- and frontal line that connects the black surrounding the base of the an¬
tennae with that of the mouth and vertex ; sometimes the frontal line is bifur¬
cated, thus forming a yellow spot below the ocelli ; there is also a small black
spot on the orbit opposite the base of the antennae, but this and the frontal line
in some specimens is entirely wanting. The yellow spots on the third and fourth
segments are larger and connected on both segments, thus forming irregular
posterior borders ; the discal spot on the fifth is also larger, leaving only a narrow
lateral and anterior margin of black.

California (Baron) ; Mt. Hood, Oregon (Morrison, Univ. Ivans.);
Summit Station, Sierra Nevada, July 4 (H. Edwards).

NORTH AMERICAN DIPTERA.

233

Stratiomyia lativeutris Loew (PI. iii, tigs. 5, 6).

Stratiomyia lativentris Loew, Oentur. vi, 8.

Startiomyia obesct Loew, Centur. vi, 11.

Length % 9 13 mm. % . — Face and occiput yellow, pile yellow ; a wide facial
line, frontal triangle and mouth black. Antennae black. Thorax black, with
yellowish pile ; scutellum and spine yellow, base black. Abdomen black ; second,
third and fourth segments with an elongated yellow spot at the lateral posterioi
margin, those on the fourth segment usually connected, forming a posterior mar¬
gin ; also a small spot at the anterior angle of the third, fourth and fifth seg¬
ments; fifth with a narrow lateral margin and a dorsal line of yellow; venter
yellow, segments with an irregular band of black at the anterior margins. Femora
brownish, with a preapical hand of black ; tips of the femora, the tibiae and tarsi
yellow; tibiae with a medial band of brown. Wings hyaline, brownish, somewhat
lighter towards the end, veins reddish.

<p —Face, front and occiput, yellow ; vertex black, with two yellow spots on
the vertical angle, in some specimens the black of the vertex extends along the
frontal orbits and connects with a narrow transverse line that extends from the
base of the antennae ; frontal fovea, mouth and a narrow facial line extending
from the base of the antennae to the mouth black ; black at the base ot the scu¬
tellum narrower than in the male. The abdominal markings are more promi¬
nent than the male, those on the third sometimes connected, thus forming a pos¬
terior margin to both the third and fourth segments; there is a prominent spot at
the anterior angle of the second, third and fourth segments, on the fifth the spots
at the anterior angles are sometimes connected with the dorsal line, leaving tuo
triangular spots and a narrow anterior margin of black. Legs yellow; femora
with a broad preapical band of brownish black.

Toronto, Out., June 17, July 12 (Wm. Brodie) ; Buffalo, X. Y.
(Kansas Univ.) ; Northumberland County, Pennsylvania (II. G.
Klages) ; Agricultural College, Michigan (Davis); Champaign
County, Illinois (W. A. Snow) ; Algonquin, Ill. ( Dr. Nason) ; Brook¬
ings, S. D. (Aldrich).

In the type ( 9 ) the abdominal markings are intermediate between
the % and 9 figured, the markings on the second segment are more
triangular, those at the anterior angles wanting, while the fifth seg¬
ment is like that of the % . In the nine specimens before me there
is a great variation in the abdominal markings.

Stratiomyia Bruneri n. sp. (PI. iii, figs. 7, 8).

Length % 9 13 mm. % . — Face yellowish ; frontal triangle, a wide medial
line, cheeks and oral margins black, with yellow pile; black of the frontal tri¬
angle extending slightly downward along the facial orbits; occiput narrowly
margined with yellow. Antennae black; first joint noticeable shorter than in
most of the species. Thorax black, with long yellow pile; scutellum and spines
yellow, base black. Abdomen black ; a small lateral quadrate spot on the first,
triangular markings on the second and third laterally connected ; a transverse
spot on the lateral posterior margin of the fourth, and the posterior half of the

TRANS. AM. ENT. SOC. XXII.

(30)

JULY, 1895.

234

CHARLES W. JOHNSON.

fifth yellow; venter greenish yellow; base of the fourth and fifth segments nar¬
rowly marked with brownish black. Legs reddish ; coxae and a wide preapical
hand on the femora black. Wings hyaline, veins yellow.

9- — Face, front and occiput yellow, shining; vertex, a transverse marking in
the fovea above the base of the an ten me, and oral margin, brown. Thorax with
short golden tomentum ; pleura, posterior angles and the base of the scutellum,
brownish ; in one specimen the entire scutellum is reddish, but this is evidently
a discoloration. The markings on the lateral posterior margin of the fourth seg¬
ment are subtriangular. and almost connected at the posterior margin ; on the
fifth there is only a narrow anterior margin of black; all the abdominal mark¬
ings are widely connected at the. lateral margin ; venter wholly greenish yellow.
Legs of a uniform reddish color; coxm brownish black.

Three specimens, Custer, S. D. (Univ. Nebraska).

Ntrsiliomyia laticeps Loew (PL iii, fig. 9).

Stratiomyia laticeps Loew, Centur. vii, 20.
fStratiomys nymplia Walker, List, iii, etc., 530.

Length % 9 11 -12 mm. . — Face and frontal triangle black, with white pile ;
facial and occipital orbits yellow. Antennae black and noticeably shorter in this
species than in any of the others. Thorax black, clothed with a thick, yellowish
white pile; scutellum and spines yellow, base black. Abdomen black, marked
at the posterior angles of the second, third and fourth segments by a subtrian¬
gular spot of yellow, those on the fourth narrowly connected ; fifth with a narrow
lateral margin and a central posterior triangle of yellow ; ventral segments yel¬
low, with a basal band of black, interrupted on the second and third ; the third
also having two small brown central spots. Femora black, tips of the femora, the
ti hi*© and tarsi, yellow ; tibia} with a medial band of brown. Wings hyaline,
veins red.

9- — Face, front and occiput yellow, shining; pile white; vertex, a spot above
the base of the antennae, medial facial line and oral margins black. Legs in one
specimen totally yellow ; femora slightly darker. The black band on the third
ventral segment continuous in'oneand interrupted in the other; lateral marking
on the fourth segment not connected.

Two specimens ( £ 9 ), Montana (Coquillett) ; one 9 > Utah (Al¬
drich); Ogden, Utah, June 20 (collection C. V. Riley, U. S. Nat.
M us.) ; Reno, Nevada (Wickham).

The type of S. laticeps is somewhat larger (14 mm.). The follow¬
ing notes are from specimens in the Museum of Comp. Zoology :

9 . — Femora varying from reddish brown to black ; £ — the pos¬
terior margin of the fourth segment narrowly interrupted, and the
base of the scutellum widely black. Weber Lake, Cal., July 22
(( )sten Sacken) ; The Dalles Oreg. June 23, Yakina River, Ellens-
burg, Wash., July 8 (Dr. Hagen) ; Twin Lake, Col. (Osten Sacken).
The later Baron Osten Sacken referred to S. nymphis Walker. That
this is Walker’s species seems quite evident, but a study of the type
is necessary.

NORTH AMERICAN DIPT ERA.

235

Klr;t(i»iii,viii normnla Loew (PI. iii. fig. 16).

Stratiomyia normnla Loew, Centu r. vi. 5.

Stratiomyia quadrigemina Loew, Centur. vi, 4.

Stratiomyia notata Loew, Centur. vi, 18.

Length ^ 9 11-12 mm. £ . — Face black, shining, with whitish pile. Antenna?
black. Thorax black, with long yellowish pile, thickest on the pleurae: basal
half of the scutellum black, apical half and spines yellow. Abdomen black,
with the following markings of yellow : second segment with a large lateral tri¬
angle, third with a narrow lateral margin (widest at the anterior angle) and a
transverse marking at the lateral posterior angle, fourth similar, except that the
lateral and lateral posterior margin is usually narrowly interrupted, it also has a
small dorsal triangle at the posterior margin, fifth with a narrow lateral margin
(obsolete posteriorly) and a central dorsal line ; venter black ; segments with a
lateral and posterior margin of yellow. Femora black ; tips of the femora, tibiae
and tarsi, yellow ; tibiae with a medial band of brown. Wings brownish, hyaline,
veins red.

9 . — Face black, whitish pile ; facial orbits and a subcordate spot below the
ocelli yellow; lower part of the occiput yellowish ; yellow of the scutellum more
prominent. Abdominal markings similar, except that the lateral and lateral
posterior margin is usually interrupted on the third, and the lateral posterior
marking on the fourth are less prominent, and in some specimens almost wanting.
Femora and outer two-tliirds of the tibiae black ; the posterior tibiae and terminal
joints of tarsi brownish : tips of the femora, basal portion of the tibiae and the
first two joints of the tarsi, reddish ; the color of the tibiae and tarsi are some¬
what variable.

Yar. quadrigemina Loew ( £ ). — This is a color variation in which
the markings on the third segment are the same as those on the
second, that is, a large lateral posterior triangle. I have in my col¬
lection a specimen that is intermediate between this and the typical
S. normnla. A specimen in the Museum Comp. Zook marked, “ a
quadrigemina, norma or normuli, differs in the flavo-bimaculata,” is
another of these intermediate forms. The male of S. normnla is
similar to that of S. norma, but the latter may be distinguished by
the greater amount of yellow on the scutellum ; the presence (usually)
of a small dorsal triangle on the third, and more hirsute abdomen.

Yar. notata Loew. — In this variety there is a transverse marking
at the lateral posterior margins of both the second and third seg¬
ments. There is also proportionately less yellow on the lateral mar¬
gins, but with upwards of twenty specimens before me I can readily
connect it with the typical S. normnla. The two forms were taken
on the same day by Mr. Wm. Brodie.

Toronto, Ontario, July 8, 12 and 17 (Wm. Brodie); New York
(Osten Sacken) ; AgriculturalCollege, Michigan (Davis); Algon¬
quin, Ill., June 2 (Dr. Nason) ; Brookings, S. D. (Aldrich) ; War
Bonnet Canyon, Neb. (Univ. Neb.).

TRANS. AM. ENT. SOC. XXII.

JULY, 1895.

CHARLES W. JOHNSON'.

2-36

Stratiomyia norma Wiedemann (PI. iii. figs. 17, 18).

Stratiomys norma Wied., Auss. Zw. ii, 62, 3.

Length % 9 12-13 min. 9 • — Face, lower part of the front, frontal and ver¬
tical orbits, ocelli and upper part of the occiput black, with yellowish pile ; facial
orbits, a large spot on the front and vertex extending on each side of the ocelli
over the vertical angle and the lower part of the occiput yellow. Antennae
black. Thorax black, with yellow and brownish tomentum ; scutellum yellow,
base black ; spines red. Abdomen black, with yellowish and blackish pile, and
the following yellow, or greenish yellow markings; a prominent triangle at the
posterior angle of the second segment, third with a small triangle at the anterior
angle, a transverse marking at the lateral posterior margin, and a small dorsal
triangle at the posterior margin : fourth with a lateral margin widest anteriorly,
a transverse marking on the lateral posterior margin, and a prominent dorsal
triangle at the posterior margin ; fifth with a narrow lateral margin, and a dorsal
vitta widest anteriorly ; venter black ; second segment yellow, with two elongate
spots along the anterior margin; third, fourth and fifth with a narrow lateral
and posterior margin of yellow. Femora red, with a wide preapical band of
brownish black ; tips of femora and the basal half of the tibiae yellow, outer half
of the tibiae and tarsi red. Wings brownish, hyaline; veins red.

■J, . — Face wholly black; the small dorsal triangle on the third segment and
the greater amount of yellow on the scutellum distinguishes it from 8. normula.
Femora brownish black ; in some specimens showing a preapical band of black on
the middle and posterior femora, tibiae and tarsi reddish yellow.

Philadelphia, Pa. ; Agricultural College, Mich., June 20 (Davis) ;
Elkhart, lad. (J. R. Weith) ; Algonquin, Ill., June 1 (Dr. Nason);
Burlington, Iowa (Dr. H. G. Griffith); Sand Hills, Neb., July
(Univ. Neb.); Allegheny, Pa. (Aldrich).

Stratioiu.yia iinilimhata Loew (FI iii, figs. 19, 20).

Stratiomyia umlimbata Loew, Centur. vi, 6.

Length 9 13 mm. 'J, . — Face, frontal and vertical triangle black ; face with
long white pile. Antennae black, under side of the third joiut brownish. Thorax
black, with a whitish pile, which is longest on the pleurae ; scutellum and spines
yellow, base black. Abdomen black, with the following yellow markings on the
segments: second with a large lateral triangle; third with a small subtriangular
spot at the anterior angles, a transverse marking at the lateral posterior margin,
and a very small dorsal triangle at the posterior margin ; fourth with lateral and
posterior margins, the latter with a small dorsal projection ; fifth with a slight
lateral margin towards the anterior angles, and a subtriangular dorsal mark not
reaching anterior margin : venter black, segments with yellow posterior margins,
widest on the second segment, where the black is widely interrupted. Femora
black, tips of the femora, basal half of the tibiae and the tarsi, yellow ; outer
half of the tibiae, the last two and tips of the other tarsal joints blackish ; the
outer half of the posterior tibiae is normally brownish, with a medial ring of
black. Wings brownish hyaline ; veins reddish.

9 . —Face, front, vertex and occiput black ; pile on the face whitish, thickest
along the orbits; front with a small, yellow, subcordate spot below the ocelli ;
lower part of the occiput, an obscure greenish yellow. Thorax black, with short

NORTH AMERICAN DIPTERA.

237

yellowish white tomentum ; scutellum yellow, the black base narrower than in
the male. Abdominal markings the same as the male, except that markings on
the second segment are usually contiguous at the posterior angles.

In a male specimen in the U. S. National Museum the marking
on the posterior margins of the third segment are contiguous, form¬
ing a margin similar to that on the fourth. A female from Illinois
has the markings on the posterior margin of the third contiguous
and widely interrupted on the fourth.

Montana (Morrison, Univ. Ivans.); Wisconsin (Loew); Brook¬
ings, S. I). (Aldrich) ; Custer, S. I). ; War Bonnet Canyon ; Lincoln,
August ; and West Pt., Neb. (Univ. Neb.) ; Cheyenne, Wyoming,
June 15 (collection C. V. Riley) ; Spanish Peak, Col. (Osten Sacken ),
Mus. Comp. Zool.; Carlinville, Ill. (Robertson).

Strsitiomyia senuria Loew (PI. iii, fig. 10).

Stratiomyia senaria, Loew, Centur. vi, 7.

Length 11 mm. ; wing 9 mm. 9 • — Face, front and upper part of the occiput
black, with whitish tomentum ; a yellow spot below the ocelli, facial orbits and
lower part of the occiput, dull yellow. Antennae black. Thorax black, with
yellowish white tomentum; scutellum yellow, with a narrow black base, spines
red. Abdomen black; second, third and fourth segments with transverse yellow
markings along the lateral posterior margins, those on the fourth short and nar¬
row, third with a small yellow spot at the anterior angles; fourth laterally mar¬
gined with yellow; fifth with a narrow lateral margin and a central stripe not
reaching the anterior margin ; one specimen shows a short, obsolete, central
stripe on the fourth ; venter black, second segment broadly margined with yellow,
or yellow with black maculatious on the lateral anterior margins ; third, fourth
and fifth with a narrow posterior margin of yellow. Femora black, tips of the
femora, tibiae and tarsi yellow ; in one specimen the anterior and middle tibiae
are annulated with brown in the middle, and the outer half of the posterior
tibiae is brown. Wings of a uniform dark brown.

Two specimens, St. Augustine, Fla.

In the type, a $ , the markings on the second segment are some¬
what triangular, and those on the third and fourth nearly of equal
size.

Stratiomyia nevadsr Bigot.

Stratiomys nevcuhe Bigot, Ann. Soc. Eut. France, xxxviii, 24.

Long. 10 mill. % . — Nigra, facie, thorace scutelloque longe et dense cinereo
villosis; abdomen nigropiloso; halteribus fuscanis, clava prasina ; spinis scutelli
pallide testaceis, apice fuscis ; tibiis basi, late fere albis, tarsis fulvo uotatis, apice
infuscatis; alis pallidissime flavis, macula stigmaticali pallide castanea.

Entierement noire, excepte : cotes de la face, thorax, ecusson. longuement et
assez densement couverts de poils gris ; abdomen avec des poils noirs et courts ;
epines de l’ecusson blanchatres, a pointe brune ; balanciers roussatres avec la
massue d’un vert clair ; base des tibias largement blanchatre, tarses roussatres
avec. l’extremite brunatre; ailes un peu roussatres ainsi que le stigmate.

TRANS. AM. ENT. SOC. XXII.

JULY. 1895.

238

CHARLES W. JOHNSON.

Amer. Septentr. (Nevada) ; one specimen.

The following description I refer to this species, a study of the
type is necessary for certainty :

Length ^ 11 mm. — Face black, with long, dense, whitish pubescence. An¬
tennae black. Thorax and scutellum black, with long whitish pile ; spines of the
scutellum yellow; halteres bright green. Abdomen black, shining ; pile black ;
venter black, segments with a narrow posterior margin of yellow. Legs black;
tips of the femora, basal half of the tibiae and two basal joints of the tarsi, yel¬
low ; the remaining joints of the tarsi brownish. Wings hyaline, veins brown.

Two specimens, Weber Lake, California, July 25 (Osten Sackeu),
Museum of Comparative Zoology, Cambridge, Mass.

This species may be readily known by its uniform black color, and
conspicuous whitish pile. This species is included by Baron Osten
Sacken in the following remark in Western Diptera, p. 213 : “I have
furthermore three Stratiomyise and one Odontomyiae from the Sierra
Nevada (Weber Lake, in July) which I abstain from describing.”

Stratiomyia Jloigenii Wiedemann (PI. iii, tigs. 21, 22).

Strati ornys Meigenii Wied., Auss. Zw. ii, 61, 2 (tab. viii, fig. 7).
f Stratiomys lineulata Macquart, Dipt. Exot. 4e Suppl. 48, 6 (tab. iii, fig. 5).
Stratiomyia anguJaris Loew, Centur. vi, 16.

Stratiomyia marginalia Loew, Centur. vi, 17.

Length 'J, £ 11 13 mm. % .-^Face black, with whitish pile. Antenna; black.
Thorax black, whitish pile, longest and thickest on the pleura : scutellum black
apical margin (between the spines) greenish yellow, spines dark yellow, the tips
more or less brownish, the size of the apical margin varies from a narrow line to
an area about one-fifth the size of the scutellum. Abdomen black, with short
black and whitish pubescence, and marked with yellow as follows : second seg¬
ment with triangular lateral markings narrowly reaching the anterior angles; in
some specimens these markings are truncated or divided anteriorly, leaving sub-
triangular or oblong transverse markings at the posterior angles, and very small
markings on the anterior angles; lateral margins of the third segment expanding
into triangles at the anterior angles, and connected at the posterior angles with
the transverse markings on the lateral posterior margins ; markings on the fourth
the same as those on the third, except that the transverse markings are much
shorter and narrower ; the form of the lateral margins varies, in one specimen
the lateral and transverse markings on the third and fourth segments are of
uniform width ; fifth with lateral margins and an even dorsal line not reaching
the anterior morgin ; venter yellow or greenish yellow ; second segment with an
oblong black spot on each side along the anterior margin, sometimes narrowly
connected; third, fourth and fifth with a transverse central spot, usually attenu¬
ated along the anterior margin, but not reaching the lateral edge ; the macula-
tions vaiy considerably, and in one specimen are almost obsolete. Femora black,
outer two-thirds of the anterior and middle tibiae black or brownish black, poste¬
rior tibiae reddish, annulated in the middle with brown ; in some specimens this

NORTH AMERICAN DIPTERA.

239

character also prevails on the middle tibiae ; tips of the femora, base of the tibiae
and tarsi yellow, tarsal joints annulated with red at the tips. Wings brown,
veins red, tips more or less a clear hyaline.

9 . — Face, front and vertex black, whitish pile longest and thickest on the face,
front shining, a spot on the facial orbits, a small subcordate spot below the ocelli
and the lower part of the occiput yellow ; in some specimens there is also a very
small spot on each side of the ocelli. Thorax black, with black and whitish
tomentum, arranged so as to form a broad dorsal and transverse line and a post-
alar spot of black. Abdomen black, with short whitish pubescence ; the yellow
markings on the second, third and fourth segments consists of a small subtrian-
gular at the anterior angles, a narrow lateral margin more or less distinct, and
narrow transverse markings at the lateral posterior margin, fifth with a lateral
margin widest anteriorly, and a dorsal stripe not reaching the anterior margin ;
venter greenish yellow, with black markings similar to those of the male, but
usually larger, leaving only a narrow lateral and posterior margin of yellow.

Over forty specimens ; southeastern Pennsylvania and southern
New Jersey; common July 5 to August 1(1; West Pt., Neb., June
(Aldrich); Riley County, Kansas, June (Marlatt) ; Blanco County,
Texas; Agricultural College, Michigan, June 20 (Davis); Algon¬
quin, Ill., June 4 (I)r. Nason).

Loew’s descriptions were based on single specimens ; with a large
series it would have been impossible to separate them. The type of
S. angularis differs from S. marginalia in having more prominent
yellow triangles at the anterior angles of the segments, and S. nigri-
ventris in having a greater amount of black on the ventral segments.
The specimen referred to, S. Meigenii, has the yellow spot on the
front, and the yellow of the scutelluin prominent. Wiedemann
describes a % , but the head in the figure is that of a $ . In the
figure the abdomen shows only four segments, or at least the color
markings indicate only four, while the vittse on the fifth segment
extends from the anterior margin and does not reach the posterior ;
the latter is the reverse in all our Stratiomyia, so .that the figure
should be considered incorrect.

Sti'atioin.yia apicnla Loew, (PI. iii, figs. 23, 24).

Stratiomyia apicula Loew, Centur. vi, 13.

Length ^ 9 12 mm. ^ . — Face, frontal and vertical triangles black ; pile on
the face white ; facial orbits slightly yellowish. Antennae black, underside of the
third and tip of the second joint brown. Thorax black, with yellowish white
pile ; scutellum black, apical margin and spines yellow. Abdomen black, with
short whitish pubescence, and with the following yellow marking on each of the
segments : a small lateral spot on the first, a large subquadrate marking at the
sides of the second ; third with a wide lateral posterior margin of about equal
extent ; fourth with a lateral margin, widest anteriorly and slightly extending

TRANS. AM. ENT. SOC. XXII.

JULY, 1895.

240

CHARLES W. JOHNSON.

onto the lateral posterior margin ; fifth with narrow lateral margins, and a central
triangle attenuated anteriorly, but not quite reaching the anterior margin ; venter
black ; segments with yellow posterior margins, widest on the second segment,
where the black consists of two large spots along the anterior margin. Femora
black, outer half of the anterior and middle, and a medial band on the posterior
tibiae brownish black : tip of the femora, basal half of the anterior and middle
tibiae, posterior tibiae and all the tarsi yellowish. Wings brown, hyaline; veins
reddish.

9 . — Face, front, vertex and upper portion of the occiput, black ; face with
whitish tomentum ; facial orbits, a small subcordate spot below the ocelli, and the
lower portions of the occiput, greenish yellow. Thorax black, with yellowish
tomentum ; scutellum black ; apical margin and species yellow. Abdominal
markings the same as the male, except that the markings on the side of the second
segment are more quadrate.

Burlington, Iowa (Dr. H. G. Griffith) ; Algonquin, Ill., June 8-
19 (Dr. Nason); Douglas County, Kansas, June (Univ. Ivans.);
War Bonnet Canyon and Lincoln, Neb. (Univ. Neb.).

Slratiomyia disculi* Loew (l’l. iii, figs. 27, 28).

Slratiomyia discalis Loew, Centur. vi, 14.

Length % 9 1 1 mm. . — Face, frontal and vertical triangle black ; pile long,
yellowish. Antennae black. Thorax black, with long, dense, yellowish pile;
scutellum black, with long pile; apical margin and spine yellow. Abdomen
black, shining : thick and very convex; pile on the first, second and fifth seg¬
ments yellowish ; on the third and fourth black ; a small spot at the posterior
angles of the first, a large quadrate marking on the sides of the second ; a trian¬
gular mark at the anterior angles of the third, and a dorsal line on the fifth, yel¬
low ; first, fourth and fifth ventral segments black, with narrow lateral and pos¬
terior margins ; second and third yellow, with a narrow posterior margin of black
on the second, and two black spots on the posterior margin of the third ; pile on
the entire ventral surface yellow. Femora and tibise black, or brownish black ;
tip of the femora, basal third of the tibiae, yellowish ; basal half of the posterior
femora and the tarsi brownish. Wings brown, hyaline.

9 . — Face, front, vertex and occiput black ; face with thick yellowish pubes¬
cence, sparse on the front and vertex; facial orbits and a small cordate spot
below the ocelli yellow. Antennae black, proboscis brownish. Thorax black,
with a dense yellowish tomentum ; scutellum black, apex and spines yellow.
Abdomen black, shining, with a very short whitish pubescence; a subtriangular
mark on the sides of the second, a small triangular mark at the anterior angle of
the third, a very narrow lateral margin on the fourth and fifth, and a dorsal line
on the fifth, yellow ; venter same as the male ; posterior tibiae, tarsi (except the
tips) and basal half of the femora, yellow.

Provo, Utah (Wickham); West Point, Neb., May (Aldrich) ;
Minnesota (Univ. Kans.) ; Algonquin, Ill. (Dr. Nason); Pennsyl¬
vania (Philip Nell) ; Agricultural College, Michigan (Lowe) ; West
Virginia and Massachusetts, June (Riley); Spanish Peak, Col.
(Museum Comparative Zoology).

NORTH AMERICAN DIPTERA.

241

SI r;i I iomyia qiiaternaria Loew (PL iii, figs. 25, 26).

Stratiomyia quaternaria Loew, Centur. vi, 12.

Length % 9 11 mm.; wing 9 mm. % .■ — Face black, whitish pile. Antennae
black, brownish on the. underside of the third joint. Thorax black, with long,
brown, reddish pile, not quite as wide as the head ; scutellum black ; apical
margin and spines yellow. Abdomen black, with black and yellowish pile, and
marked with yellow as follows : a large, square, lateral marking on the second ;
a large lateral marking on the third, nearly as wide as that on the second, but
not touching the anterior margin its full width, and with an indentation on the
inner edge near the posterior margin ; fourth with a lateral margin widest ante¬
riorly, or with a small triangle at the anterior angles ; fifth with a very narrow
or obsolete lateral margin, and a medial line not reaching the anterior margin ;
venter yellow, second segment with two elongated black spots along the anterior
margin, midway between the centre and lateral margin ; third with a central
black square of greater or less extent, sometimes consisting only of an anterior
marginal line ; fourth black, with a wide lateral and narrow posterior margin (in
one specimen a narrow medial line) ; fifth black, with a narrow lateral and poste
rior margin. Abdomen wider than the female, sides of the second, third and
fourth almost parallel. Femora black, tip of the femora, base of the tibire and
posterior tarsi yellow; outer half of the anterior and middle tibiae dark brown,
posterior tibiae annulated with brown in the middle ; tarsi reddish brown. Wings
brown, hyaline ; veins red, diseal cell emits three veins.

9 • — Face, front and vertex black : whitish pile, a small spot below the ocelli,
and one on each side of the face yellow ; the yellow markings on the second ab¬
dominal segment the same as in the male ; on the third segment the same as the
male, or much smaller, and consisting of a subtriangular spot at the anterior
angle and a narrow margin at the posterior angle ; the form of the yellow mark
ings on the third segment is the most variable character.

Allegheny, June 7, and Northumberland County, Pennsylvania
(Aldrich); Agricultural College, Michigan, June 16 (Davis); Al¬
gonquin, Ill., June 4 (Dr. Nason) ; Denver, Col. (Beales).

Stratiomyia maculosa Loew (PI. iii, figs. 13, 14, 15).

Stratiomyia maculosa Loew, Centur. vii, 19, 9 .

Stratiomyia insignia Loew, Centur. x, 7, .

Stratiomys dentata Bigot, 9 Ann. Soc. Ent. France, xvi, 1879, 210.

Stratiomys lacerata Bigot, 'J, Ann. Soc. Ent. France, xvi, 1879, 211.

Length % 9 14 mm. %. — Face black, with yellowish white pile ; occiput nar¬
rowly margined with yellow. An ten me black. Tborax black, with long, dense,
yellow pile ; scutellum yellow, base black. Abdomen black, with yellow pubes¬
cence, and marked with yellow as follows : the large lateral spots do not reach
the anterior margin, except near the angles ; second segment with a large sub-
triangular lateral spot; third with a large, square, lateral spot, which contains,
near the lateral margin, a small, oblique, black spot; in one specimen this spot is
wanting, and there is a small dorsal triangle at the posterior margin ; in this
specimen the square markings on the fourth segment contain a small oblique
black spot, and the yellow on the posterior margin is continuous. In the first
specimen (fourth segment) the spot is connected with the black, thus forming an
incisure into the square, yellow, lateral spot ; yellow not continuous on the pos

TRANS. AM. ENT. SOC. XXII.

(31)

JULY, 1895.

242

CHARLES W. JOHNSON.

terior margin, and only a small dorsal triangle; fifth with a lateral margin,
widest anteriorly, and a dorsal line. In specimen referred to there is a round
spot on each side of the dorsal line ; venter yellow, with a central row of large
black maculations; laterally attenuated along the anterior margin, but not reach¬
ing the lateral or posterior edges ; in some specimens the black on the second seg¬
ment consists only of an irregular line ; the ventral markings are quite constant
in both sexes.

9- — Face, front and occiput, yellow; oral margin, cheeks and medial facial
line (more or less distinct) a transverse line from the base of the an ten me to the
eyes and the vertex, black ; in some specimens the two latter are narrowly con¬
nected at the sides; vertical angle with two yellow spots, sometimes connected
on the cervex. Thorax black, with yellowish tomentum ; scutellum wholly yel¬
low. Abdomen black; the variable yellow markings might be described from
three specimens, as follows : First. — The square lateral markings on the second
segment with a small lateral spot of black ; the square lateral markings on the
third and fourth with a broad oblique incisure of black ; a small triangle on the
posterior margin of the second, a larger one on the third, and the one on the
fourth much larger and greatly attenuated, but not reaching the anterior margin ;
the yellow markings not connected at the posterior margin; fifth with a dorsal
line, on the sides of which are spots narrowly connected, hut not connected with
the lateral margins. Second. — The square lateral markings on the second segment
without the small black spots; lateral markings on the third and fourth with
oblique black spots; second segment with a small dorsal triangle, third with a
larger triangle; fourth with a much larger and attenuated triangle, not reaching
the anterior margin, the yellow markings connected at the posterior margin;
fifth with a dorsal line, on each side of which is a spot narrowly connected with
the dorsal line and lateral margin. Third. — The square lateral markings on the
second segment with small black spots and a prominent dorsal triangle ; lateral
squares on the third with black spots and a larger dorsal triangle; fourth segment
yellow, except a narrow anterior margin, the lateral spots and two minute point;
on the posterior margin of black ; the markings on the fifth segment might be
described as a broad dorsal line, with a spot on each side broadly connected with
the dorsal line and lateral margins, or yellow, with a narrow anterior margin,
and subtriangular markings at the posterior angles, of black. Femora black ; tips
of the femora, tibia; and tarsi, reddish yellow ; middle of the tibia; obscurely
annulated with brown, most prominent on the posterior tibia;. Wings brownish,
veins dark yellow.

Alameda County, California (Coquillett) ; San Rafael County,
California, April and May (Osten Sacken); Ogden, Utah (Riley),
U. S. National Museum.

The above description is based on four males and four females.
The great variation in color is remarkable, in comparison with other
North American species. The black face and base of scutellum of
the male led Loew to describe it as another species. Baron Osten
Sacken, in Western Diptera, p. 213, refers to the two species S.
maculosa and S. ittsignis as being identical.

NORTH AMERICAN DIPTERA.

243

Stratiomyia l»a«l ins Walker (PI. iii, figs. 11. 12).

Stratiomys BadAus Walker, List, iii, 529, 1. c. iv, 1157.

Stratiomys ischiaca (Harris), Walker, List, iii, 529.

Stratiomyia picipes Loew, Centur. vii, 21.

Length y 9 11 mm. 'J, . — Face and lower portion of the occiput yellow; face
with long yellow pile; a wide facial line, mouth, vertical triangle and upper part
ef the occiput black. Antennae black. Thorax black, with brownish pile ; scu-
tellum yellow, base black ; apical margin and spines red. Abdomen marked with
yellow, as follows : second segment with a small spot at the anterior angles, and
a transverse marking on the lateral posterior margins ; those on the third seg¬
ment similar, except that the markings on the lateral posterior angles are longer,
and in some specimens almost join ; fourth with a spot at the anterior angle, and
a continuous posterior margin, from which extends, anteriorly (for about two-
thirds the length of the segment), a medial stripe widest at the base ; the fifth
with a very narrow lateral margin and a medial stripe not reaching the anterior
margin ; venter black, with lateral spots on the first and a quite uniform posterior
margin of yellow to all the other segments. Femora black, varied with brown ;
basal third of the tibia; yellow ; tips of the femora, tibite and tarsi, red. Wings
brownish, hyaline; veins reddish.

9 . — Vertical portions of the occiput, vertex, front, facial line and mouth black.
Face, two large spots on the front, two on the vertical angles and lower part of
the occiput yellow ; pile on the thorax shorter than in the % and with somewhat
conspicuous whitish tufts at the humeri, suture, posterior angles and pleurae ;
yellow of the scutellum more prominent. Femora red, with a wide, variable
band of brownish black.

Franconia and Mt. Washington, N. H. (Mrs. Slosson) ; Massa¬
chusetts (Harris); “English River, Kennicot; Canada, Cooper”
(Loew).

Walker’s name having priority, I have adopted instead of Loew’s.
In describing the species Walker gave the habitat as “ New Hol¬
land.” This he corrects in List, pt. iv, p. 1157, as follows : “ for New
Holland read Newr Hampshire, and unite the description of S.
Badius with that of S. ischiaca.” The latter name first appeared in
“Harris’ Catalogue Insects of Massachusetts,” 1835 (name only).

Strut iom.yiu mutabilis Fabric; us (PI. iv, fig. 3).

Stratiomys mutabilis Fabr., Ent. Syst. iv, 262; Syst. Anti., 81; Wiedemann
Auss. Zw. ii, 63, tab. 8, figs, a-d ; Perty, Del. Anim., etc., tab. 38. 14 ;
Bellardi, Saggio, etc., i, 30; Schiuer, Novara, etc., 61.

Stratiomys fasciata Fabr., Ent. Syst. iv, 266; Syst. Anti. 81, [Bellardi],

Length % 9 9 mm. — Face black, with white pile, which is very long and thick
on the inferior orbits; facial prominence shining; facial orbits, and a spot on
each side of the prominence near the base of the antennae, yellow. Antennae
black, basal half of the first joint reddish. Thorax black, with thick whitish
pile; posterior angles yellow ; scutellum black, inferior margin, basal angles and
spines, yellow; tips black. Abdomen black, with a dense pubescence, which, in
certain lights, show a silvery reflection (more noticeable on the ventral surface),
segments narrowly margined with yellow ; a band occupying the posterior two-

TKANS. AM. ENT. SOC. XXIX.

JULY, 1895.

244

CHARLES W. JOHNSON.

thirds of the fourth, and one occupying the medial third of the fifth segment
yellow ; venter yellow ; all the segments with a basal hand of black, the first
segment also has a posterior band. Femora brownish black ; tibise and tarsi red¬
dish, terminal half of the tarsi brownish ; anterior half of the wings yellowish,
the outer portion of this with a brownish tinge.

9 . — Face and front black, with yellowish white pile ; facial and frontal orbits,
two spots above, and two below the base of the antenme and occiput, yellow-
Thorax black, pubescence yellow; humeri, a narrow, raised, lateral line that
divides the dorsum from the pleurae, and the posterior angles yellow; scutellum
and spines yellow, discal portion of the scutellum and tips of spines, brown.

Orizaba, Mex. (Prof. Bruner); Tehuantepec (collection C. V.
Riley, U. S. National Museum); Panama (Mils. Comp. Zool.) ; San
Geronimo, Guatemala (Champion) ; 6000 to 7000 feet Irazu Costa
Rica (Rogers) ; Cayenne; Brazil.

Strsitiom.viii constans Loew (PI. iv, figs. 1, 2).

Strntiomyia constans Loew, Centur. x, 8.

Length % 9 9 mm.; wings 7 mm. % . — Face black, with silvery white pile;
a small spot on each side of the facial protruherance, a spot on the orbits and the
lower part of the occiput yellow ; oral margin more or less brownish : proboscis
black, base brown, first and second joints of the antennse red, tips of the first
and the third joints black. Thorax black, whitish pubescence ; pleurae and pectus
with silvery white pile; humeri, a spot forward of the suture and the posterior
angle, yellow ; pleurae with an irregular spot on the prothorax, a smaller one on
the mesothorax and metathorax, yellow; scutellum yellow; spines red. Abdo
men black, with whitish pubescence (silvery in certain lights), and marked with
yellow, as follows: second segment with subtriangular markings at the lateral
posterior angle ; third with a wide posterior hand (in one specimen narrowly in
terra pted) : fourth with a narrow posterior band (which is broadly interrupted
in one specimen) ; all the segments with a narrow lateral margin ; venter greenish
yellow, with silvery white pubescence ; first segment with two spots and a narrow
posterior margin of black ; second, third, fourth and fifth, with an anterior band
of black, laterally attenuated, but not quite reaching the lateral margin; the
band on tin- second segment is usually interrupted. Legs uniform red ; anterior
third of the wing dark brown ; veins reddish, the remainder of the wing brownish
hyaline.

9 . — Face, front, vertex and occiput yellow ; with yellowish pubescence ; oral
margin and a line extending front there to the orbits brownish black; base of the
antennse surrounded by black, from which extends a central line to the facial
prominence, and one on each side midway between the facial line and the orbits;
narrowly connected above with the square black marking on the front and vertex ;
vertical orbits brownish, and connected with the black of the vertex. Thorax
black: humeri, a lateral stripe extending to the suture; posterior angle, scutellum
and pleurae, yellow ; the lateral stripe and pleurae narrowly divided by a promi¬
nent dorso-pleural suture; the posterior margin of the third and fourth segments
continuous; prominent and of uniform width.

Blanco County, Texas.

NORTH AMERICAN DIPTERA.

245

Stratiomyia Gerstaeclseri Bellardi.

Stratiomys Gerstaeclceri Bellardi, Saggio, etc., i, 31, tab. 1, fig. 10.

■J, . — Black, with greenish stripes. Head broad, eyes naked and contiguous near
base of front, ocelli yellow, front triangular, black, with yellowish pubescence.
Antennae long, black, base of the first yellowish, face very prominent, black
shining ; pubescence whitish, with two yellow spots near the orbits, the upper
one near the base of the antennae the lower one on the inferior orbits ; apex of
the epistoma marked with yellow ; palpi yellow, proboscis black. Thorax sub-
quadrate, black, pubescence yellow, posterior with two greenish markings; pleurae
and pectus with whitish pile; scutellum black, spines yellow, halteres green, base
brown. Abdomen subquadrate, depressed, black, somewhat naked, pile yellow,
obsolete, margins greenish yellow, second and third with a band at the posterior
margin band small and not interrupted ; venter green tomentose, silvery. Legs
brownish black ; femora very black, tibiae and tarsi obscure yellow ; apex of the
tarsi brown. Wing, anterior margin broadly, densely fuscous, posterior margin
hyaline. Length 7 mm. ; wings 18 mm.

Mexico (Salle), Bellardi.

This species, on first appearance, seems related to Stratiomyia sab-
alba Walker, but the bands on the second and third segments are
not interrupted.

Stratiomyia bimaculata Bellardi.

Stratiomys bimaculata Bellardi, Saggio, etc., App. 10. fig. 7.

. — Black, with two whitish spots. Head broad, eyes near the base of the
front contiguous ; front small, triangular, black, below with yellowish silvery pu
bescence. above with black pubescence. Antennae very long, black ; base of the
first joint yellowish, face prominent, middle longitudinally carinate, black, shining
with thin whitish pubescence ; palpi brown, near apex yellow, proboscis black.
Thorax subquadrate, slightly convex, black ; tomentose somewhat dense and yel
lowish brown, a green spot between the base of the wing and scutellum ; scutellum
black, spines short, black, and near the apex, yellowish : pleurae and pectus black,
with whitish pubescence ; halteres green, near the base yellow. Abdomen sub¬
quadrate, depressed, black, tomentose brown ; second segment with two large,
greenish white spots, contiguous with the posterior margins of the segments and
curved anteriorly, middle stripe small; venter white, silvery tomentose. Legs
brownish black, all of the femora black ; tibiae and tarsi reddish yellow. Wings
small, rather long, anterior broadly stained with black, near the posterior margin
clouded. Length 11 mm. : wings 20 mm.

Cosamaloapam, Mexico (Salle), Bellardi.

Doubtful and Undetermined Species.

Stratiomyia const ricta Walker

Stratiomys constricta Walker, Trans. Ent. Soc. n. ser. v, 268.

'J, . — Deep black. Head with slightly silvery tomentum in front and with gray
pubescence beneath and behind ; scutellum with two piceous spines. Abdomen
piceous at the tip, and with a band of slightly silvery tomentum on each seg¬
ment: tarsi and hind tibia: tawny. Wing lurid at base, dark brown from thence
to more than half the length, vitreous and colorless toward the tip. Length 6
lin. ; wings 12 lin.

Mexico.

TRANS. AM. ENT. SOC. XXII.

july, 1895.

24G

CHARLES W. JOHNSON.

Sti'iilioiiijia pin an is Walker.

Stratiomys pinguis Walker. Trans. Ent. Soc. n. ser. v, 270.

9 . — Blackish. Head with ferruginous tomentum above with whitish pubes¬
cence in front; hind side with silvery tomentum. Antennae black ; third joint
lanceolate towards the tip, much longer than the first. Thorax with ferruginous
tomentum and with ferruginous stripe along each side; scutellum with two fer¬
ruginous spines. Abdomen with bands of slightly gilded tomentum on the bor¬
ders of each segment ; underside with bands of whitish tomentum, which are
dilated on each side, and with a broad, tawny, discal stripe. Femora and tibiae
beneath and tarsi, tawny. Wings vitreous, lurid along the costal from the base
to nearly two-thirds its length. Length 6 lin. ; wing 12 lin.

Mexico.

Strafioiujia subulha Walker.

Stratiomys subalba Walker, List, etc., v, 43.

f Stratiomys subalba Bellardi, Saggio, etc., i, 31 ; Osten Sacken, Biol. Ceut.-
Amer. Dipt. 36.

“ Male. — Black, clothed beneath with silvery down. Antennae nearly twice the
length of the head; first joint tawny towards the base, nearly six times the
length of the second ; flagellum elongate-fusiform ; scutellum tawny along the
hind border, with two testaceous spines. Abdomen with two interrupted whitish
bands, one on the second, the other on the third segment; underside pale green,
with silvery tomentum. Legs tawny ; femora black. Wings limpid, narrow,
dark brown in front ; halteres white. Length of body 3 lines ; wing 6 lines.

“Para. From Mr. Bates’ collection (Walker).”

“ Male. — Black, vittae white. Head broad, eyes near the base of the front con¬
tiguous; front small, triangular, black, with yellow pile. Autennae long, black ;
first joint yellow, near the apex black ; face prominent, carinate, black, shining,
with sparse white pile; palpis flavis; proboscis black. Thorax subquadrate,
black, tomentum rather long, yellow, a pale spot between the base of the scutel¬
lum and base of the wing; scutellum black, bispinose; spines yellow, short;
pleurae and pectus black, with white pile ; halteres yellow, knob green. Abdo¬
men subquadrate, black ; second and third vittae near the posterior margin ; vittae
rather broad, interrupted in the middle, white ; lateral margin of the second,
third and fourth segments yellowish; venter yellow, with silvery tomentum.
Legs black and yellow ; femora black ; tibiae and tarsi yellow. Wings yellowish,
towards the posterior margin broadly hyaline, and the anterior margin fuscous.
Length 8 mm. ; length of wings 16 mm.”

Tampico, Mex. (de Saussure). Bellardi Baron Osten Sacken
(Biol. Centr.-Amer. Dipt. 86) refers to this species as follows :

“ I cannot believe that this species is merely a variety of S. muta-
bile, besides the very considerable difference in the coloring of the
body and wings (the costal half of which is uniformly brown). The
abdomen is squarer and flatter than in the male of that insect.
Schiner (Reise d. Novara Dipt. p. 61) speaks of varieties of S. mu-
tabilis with the costal half of the wing uniformly brown ; and Arri-

NORTH AMERICAN DIPTERA.

247

balzaga (Catalogue, etc., p. 128) regards S. subalba Walker as a
mere variety of S. mutabilis. But is Schiuer right ? and is /S', sub¬
alba Arrih. the same as S. subalba Bell.? meanwhile I cannot be¬
lieve, until we have proof of the contrary, that the four male speci¬
mens before me are a mere variety of S. mutabilis
I have not seen this species.

Stratioinyia gonipliorn Say.

Stratiomys goniphora Say, Jour. Acad. Nat. Sci. Pliila., vi. 161 ; Compl. Wr.
ii, 356.

“Black. Thorax with minute golden hairs; beneath greenish. Head yellowish
white, two undulated, black, frontal hands; vertex black, yellowish behind ;
hypostoma with a lateral black dot, sometimes obsolete; proboscis black. An¬
tennae black, occiput black. Thorax with numerous small golden hairs ; a yel¬
lowish line over the wings; scutel black, posterior margin and spines yellow.
Wings hyaline, costal nervures and cellule yellowish; middle nervures blackish,
tergum black, with lateral yellow triangles and tip ; beneath pale greenish, pectus
on the disc black ; feet yellowish, a line between the thighs black ; venter on the
posterior disc ferruginous (Say). Length more than three-tenths of an inch.

“ Inhabits Mexico.”

Strafiomyia rohusia Walker.

Stratiomys robusta Walker, List, v, 37.

Nigra: oculi testaceo exparte marginati; antenna: capite duplo longiores; scu-
‘tellum margine postico spinisque 'fiavis ; abdomen crassum, marginibus vitta
apicali ventreque flavis, hac fascius tribus abbreviatis nigris: pedes flavi, femori-
buc nigris. tibiis nigro cinctis ; alse fuse®, apice limpid® ; halteres flavi.

Fern. — Black. Head testaceous about part of the eyes. Antennae about twice
the length of the head ; first joint full six times the length of the second. Thorax
clothed with pale down ; hind border and spines of the scutellum yellow. Ab¬
domen convex, very thick, yellow along the sides, and with a yellow stripe on
the apical segment ; underside yellow, with three broad, black bands, which are
much abbreviated on each side. Legs yellow ; femora black ; a black band on
each tibia. Wings brown, with limpid tips; veins piceous; halteres yellow
Length of the body 5 lines ; wings 10 lines.

North America (Walker).

Strationiyia nigrifrons Walker.

Stratiomys nigrifrons Walker, List, iii, 531.

“ Mas.- — Nigra ; scutelli margine postice flavo, abdominis lateribus maculisque ad
apicem duabus flavis, ventris fasciis flavis, antennis pedibusque nigris, tibiis apice
tarqu fulvis. alis fuscis.

“ Body black. Head as broad as the chest, clothed with tawny hairs ; eyes
black ; a small part on each side composed of very small facets ; mouth and feelers
black; chest and breast clothed with dark tawny hairs; hind border of the scut¬
cheon yellow, armed with two tawny spines. Abdomen nearly oval, a little
broader and longer than the chest, thinly clothed with short tawny hairs, yellow
on each side, and adorned with a yellow spot on each of the last two segments ;

TEANS. AM. ENT. SOC. XXII.

JULY, 1895.

248

CHARLES W. JOHNSON.

hind border of each segment on the underside adorned with a yellow stripe,
which is widened in the middle. Legs black, clothed with short tawny hairs:
shanks tawny towards the base ; feet tawny ; hind slianks-tawny, with two black
bands. Wings brown, wing-ribs pieeous ; veins ferruginous ; poisers tawny, with
apple-green knobs.

“ Fem. — All the facets of the eyes very small ; hind border of scutcheon tawny ;
sides and hind borders of the segments of the abdomen tawny, its upper side also
adorned with a short tawny stripe at the tip, and a large tawny spot on each side
of the base ; feet pieeous above : claws black, tawny at the base. ; knobs of poisers
tawny. Length of the body 6-6.5 lines; wings 10-11 lines (Walker).

St. Martin’s Falls, Albany River, Hudson’s Bay.

Straf iomyia simplex Bigot.

Stratiomys simplex Bigot, Ann. She. Ent. France, xxxvii, 24.

“ 9 • Long. 8 mill.

“Nigra; facie, fronte, thorace, seutello, parce cinereo-flavido villosis et tomento
flavido intermixto; spiuis scutelli testaceis, apioe fuscis; halteribus testaceis, clava
prasina; abdomine fere nudo, flavido anguste circumdato, segmentis 2, 3 et 41S.
utrinque, apice, vitta flavida, angusta, notatis, ventre prasino flavescente ; femori
bus nigris, albido tomentosis, tibiis, fusco annulatis, fulvis, tarsis fuscanis, basi
late fulvis; alis fere hyalinis, macula stigmaticali fulva, venis fulvo pallido lim-
batis. Antennarum segmento 1° abbreviato.”

“Noire. Face, front, thorax, ecusson, couverts d’une villosite gris jaunatre,
melaugee d’un fin duvet squammeux egalenicnt jaunatre, flancs a poils gris ;
epines de l’ecusson testacees, a pointe brune : balanciers testaces, a massue verte ;
abdomen a peu pres mi, finemeut borde de*fauve, 2e, 3e et 4e segments avec, de
chaque cote de l’extremite une demibande etroite. jaune, ventre d’un jaune ver-
datre; cuisses noire, a duvet blancliatre, genoux et tibias fauves, ainsi que la base
de tous les segments tarsiens, uu anneau brun, etroit, sis vers le milieu des tibias
Premier segment des anlennes relativement court.

“ Texas, Colorado, 3 specim.”

ODOJfTOMYIA.

Odontomyia Meigen Klassific., etc., i, 128, 1804.

Stratiomys in part, of early authors.

Rather large, color variable, green or yellow with black markings,
or black, with green and yellow markings. Males and females, as a
rule, vary considerably in appearance. Head hemispherical, eyes of
the male contiguous, hut broadly separated in the female ; ocelli
prominent, face rounded or somewhat prominent and slightly cari¬
nate. Antennae inserted near the middle of the head, variable ; first
joint less than three times the length of the second, third longer
than the first and second together, more or less tapering, without
style or bristle, and composed of five annuli. Thorax subquadrate
and pilose in the male, quadrate and tomentose in the female; scu-
tellum prominent, with two spines. Abdomen ovate, flattened, and

NORTH AMERICAN DIPTERA.

249

but slightly convex, with five visible segments. Legs of moderate
size, tibiae without spurs. Wings clear hyaline, veins yellowish,
anterior veins crowded, third longitudinal vein branched in the more
typical forms, and from the discal cell emits three equal or unequal
veins, sometimes the lower veins that arises from the discal cell
(fourth longitudinal vein) is faint or rudimentary, and the third and
fourth posterior cells are coalescent, but in such cases the discal cell
will usually show an angulation indicating its origin.

Type of the genus 0. ornata Meigen, of Lurope.

In the species placed in this genus there is a greater variation to
contend with than in the genus Stratiomyia. In the first or leading
character, which distinguishes this from the preceding, viz., “first
joint of the antennae less than three times the length of the second
there is a gradual lengthening of the first joint from less than twice
the length of the second until the full limit is reached, as in 0. flavi-
cornis and 0. occipitalis. In the latter the third longitudinal vein
is simple, but this character is not confined to those with an unusual
long first antennal joint, but is characteristic of a number with nor¬
mal antennae. Again, in the case of O. flavicornis and 0. occipi¬
talis, which have the same alar and antennal characters ; the eyes
of the male of the former are pubescent, while the latter are glab¬
rous. Rondani founded the genus Psellidotus on “eyes hairy, type
0. elegans vel cruciata Macq.” A male specimen of 0. elegans
before me shows that the first and second joint of the antennae are
subequal, and the third longitudinal vein is branched. In 0. viridis
Bellardi and 0. obscura Oliv. the eyes of both the male and female
are pubescent, third longitudinal vein branched in the former, and
in the latter simple.

Another genus to- which some of the species have been referred is
Exchostoma Macq. ; type E. nitida Macq. of southern Europe. I
have been unable to make any of our species agree satisfactorily with
this genus. Bigot’s Exchostoma caliceps I have referred to Loew’s
0. nig rirostris. Dr. Williston’s says “ Bigot’s species is in any event
an Odontomyia .”

A universal study of this and allied genera may prove the necessity
of placing some of our species in other genera; but until this is done,
and we have a better knowledge of the American species, such a
course would be unadvisable. Some of my determinations may
eventually prove to be in error, but I have honestly endeavored to
straighten out this neglected group in the hope of furthering an in-

(32) JULY, 1895.

TKANS. AM. ENT. SOC. XXII.

250

CPI ARLES W. JOHNSON.

terest in their study. The following table contains only those species
found north of Mexico :

1. — Third longitudinal vein branched . 2.

Third longitudinal vein simple . 13.

2. — First antennal joint less than twice the length of the second . 3.

First antennal joint more than twice the length of the second . 22.

3. — Eyes glabrous . 4.

Eyes pubescent . 24.

4. - — Abdominal markings of the % 9 dissimilar . 5.

Abdominal markings of the 9 similar . 6.

5. —Thorax: disc usually with two irregular markings . biuofata Loew.

Thorax : disc without markings (spines of the scutellum blunt).

varipes Loew.

6. — Face of both sexes yellow . 7.

Face of male black, female yellow . rufipes Loew

7. — Abdominal markings triangular, attenuated and reaching the lateral mar

gins . i'iucta Oliv.

Abdominal markings triangular, not reaching the lateral margins.

dorsalis Fabr.

8. — Abdomen of the 9 with transverse bands; ^ with dorsal line . 9.

Abdomen of the 9 with transverse bands; % with only lateral markings
at the posterior angles . iurcqnalis Loew.

9. — Scutellum and spines yellow . arena! ;i Loew.

Scutellum and spines black . . Ilava Say.

10. — Scutellum more or less yellowish, without spines . 11.

Scutellum black, with spines . 12.

11. — Scutellum wholly yellow; black of the vertex does not extend over the

vertical angle . fallax n. sp.

Scutellum, base black ; black of the vertex extends over the vertical angle ;
proboscis longer . nigrirostris Loew.

12. — Wings: veins very dark brown, face produced . liigerrima Loew.

Wings: veins reddish, face rounded, front broad . pilosus Day.

13. — Scutellum 9 wholly green ; ^ brownish . 14.

Scutellum 9 black, with lateral margin green ; 'J, black. lexasiana n. sp.

14. — Thorax ( 9 ) disc with two green stripes ; ^ pleurae yellowish.

tri vittala Say.

Thorax ( 9 ) disc without stripes; pleurae black . verfebrata Say-

15. — Front and vertex black . 16.

Front and vertex red . liydroleonoides n. sp.

16. —Pile (pubescence) on the mesonotum short . 17.

Pile (pubescence) on the mesonotum moderately long, . americana Day

17. — Abdomen with a wide dorsal line, usually narrower in the 'J, than in the

female . 18.

Abdomen: dorsal line wanting; second, third, fourth and fifth segments
entirely green . Aldriclii n. sp.

18. — Front without yellow spots . virgo Wied.

Front with yellow spots . pilinistna Loew.

NORTH AMERICAN DIPTERA.

251

19. — Abdomen black, with transverse marking, a lateral posterior angle.

Abdomen black, with a wide, continuous, lateral margin, third antennal
joint tapering to a tine poiut . microstoma Loew.

20. — Femora black; abdominal markings on the % usually not triangular. . • .21.

Femora yellow ; abdominal markings on the usually triangular.

pubescens Day.

21. —Front and vertex marked with yellow . intermedia Wied.

Front and vertex wholly black . lioodiana Bigot.

22. — First and second joints of the antennas black . 23.

First and second joints of the. antennae red . 24.

23. — Front and vertex wide, lateral thoracic stripe continuous.

liieroglypliica Oliv.

Front and vertex narrow lateral thoracic stripe only posteriorly of the suture.

similis n. sp.

24. — Eyes pubescent; scutellum of the 9 yellow . 25.

Eyes glabrous; scutellum black, with yellow margin- .occipitalis n. sp.

25. — Abdomen (%) broad, with narrow markings pilose . 26.

Abdomen ( 'J, ) narrow, with wide marking, pubescent- • llavicornis Oliv.

26. — Antennae long ; first and second joints yellow, third black, .obscura Oliv.

Antennas short; reddish or dark brown throughout . viridis Bell.

Odoutoinyia biuotafa Loew (PI. iii. figs. 29, 30, 31, 32).

Odontomyia megacephala Loew, Centur. vi. 20 (non 0. megacephala Oliv.).

Odontomyia binotata Loew Centur. vi, 22; Day, Proc. Acad. Nat. Sci. Phila.

1882, 81.

Odontomyia bicolor Day, Proc. Acad. Nat. Sci. Phila. 1882, 78.

Length ^ 9 11-14 mm. % . — Face, occiput and vertical angle green : vertical
triangle black, ocelli yellowish, frontal triangle small, brownish ; face with thin
whitish pile, oral margins yellowish. Antennae reddish ; third joint dark brown,
tip black, first and second joints subequal ; palpi and proboscis yellow, end of
the, proboscis black. Thorax black with yellowish pile, long and dense on the
sides: the green markings show the following variation : humeri and posterior
angles green; marking at the posterior angle extends laterally to the suture;
lateral stripe continuous from the humeri to the posterior angle, usually with
two spots on the disc of the thorax ; pleurae green, pectus blackish ; scutellum, basal
half black, apical half green, sometimes totally greenish yellow; spines yellow,
tips black. Abdomen green, with an irregular black dorsal stripe, reaching the
posterior margin of the fifth segment and more or less contracted on the second
and third segments, a small black spot is usually present at the anterior angle of
the fourth segment; venter green. Legs reddish ; basal half of the femora and
tibiae yellow, outer half of the femora, tibiae and first joint of the tarsi reddish ;
tip of the tibiae (especially the anterior and middle) and tip of the first and re¬
maining joints of the tarsi brown, to brownish black. Wings hyaline, veins yel¬
low, third longitudinal vein branched ; discal cell emit three stroug veins.

9 . — Face, front, occiput and vertical angle green ; vertex, a wide, transverse
line on the front midway between the antennae and ocelli, and narrow lines at
the vertical angle separating the green of the vertical from that of the occiput,
black ; in some specimens this latter character is wanting, and the vertical and
frontal lines are narrowly connected by two longitudinal lines, thus forming three
green spots on the front ; in one specimen from Utah the frontal markings are

TRANS. AM. ENT. SOC. XXII.

JULY. 1895.

252

CHARLES W. JOHNSON.

wanting. Thorax black, with thin yellowish pubescence; lateral stripe and two
small spots on the disc of the thorax green, this latter character is variable, and
may be wanting, or may be narrowly connected with humeri in some specimens,
or with the posterior angle in others, or with both humeri and posterior angles,
thus forming two irregular stripes ; pleurae green ; pectus brownish ; scutellum
totally green ; tips of the spines brack, motanotum black. Abdomen green,
marked with black as follows: first segment except the lateral margins; second
with a large T-shaped marking ; third with a large central triangle, laterally pro¬
tracted to the lateral margin ; fourth similar, except that the central area is
larger and more quadrate; anterior half of the fifth with a large central spot,
the lateral projections not quite reaching the margins; in other specimens the
markings on the third segment are keystone- or anvil-shaped, and contains two
small greenish spots.

Los Angeles County, California (Coquillett) ; Utah (Aldrich ;
Denver, Col. (E. V. Beales) ; Texas (T. E. Hood, Boston, Soc. Nat.
Hist.) ; Wallace County, Kansas (F. H. Snow) ; Lincoln, Neb.,
July (Univ. Neb.); Algonquin, Ill. (Dr. W. A. Nason); Elkhart,
Ind. (J. R. Weith); Constantine, Mich. (U. S. Nat. Mus.).

An 0, megacephala was described by Olivier (Ency. Meth. 432,
viii) from Egypt; 1 therefore adopt the second name given by Loew.

Odonlomy in varipes Loew.

Odontomyia varipex Loew, Centur. vi, 21 ; Day, Proc. Acad. Nat. Sci. Pliila.

1882, 84.

Length % 12 mm. — Face green, vertical triangle black, ocelli yellowish, ver¬
tical angles green, frontal triangle minute, black ; first two joints of the antennae
cylindrical, equal, reddish (third joint in the type specimen wanting) ; proboscis
light yellow, labelli black. Thorax black, yellow pile; pleurae, posterior angles
and scutellum green ; base of the latter with a triangular black spot, spines short,
pectus black. Abdomen green, with an irregular dorsal stripe of black having
the following characteristics on each segment: first except the posterior angles :
second keystone-shaped, widest at the anterior margin ; third somewhat wider
than the second, slightly contracted in the middle, and attenuated along the an¬
terior margin to the sides; fourth similar but slightly wider: fifth except a nar¬
row lateral and posterior margin; venter wholly green. Femora yellow, outer
half of the anterior, outer third of the middle and tip of the posterior femora,
reddish; base of the tibiae yellow: outer half of the tibiae and tarsi reddish,
brownish black at the extremities. Wings pure hyaline, veins yellow; third
longitudinal vein forked, discal cell emits three equal veins.

Carolina (Loew).

The above description is based on the type specimen. The original
description, describing the abdomen black with green markings, 1
have reversed, as this belongs to the group in which green predomi¬
nates. It is closely related to Odontomyia binotata, but the head is
smaller, the spines of the scutellum much shorter and blunt, legs
darker, and the abdominal markings much different that the male
of that species.

NORTH AMERICAN DIPTERA.

253

Ortontoinyia rufipes Loew.

Odontomyia rufipes Loew, Ceutur. vi, 25, % .

Odontomyia scalaris Loew, Cental-, vi, 26, 9 •

Length ^,11 mm. — Head totally black ; first two joints of the antennae brown¬
ish black, subequal (third in the specimen described wanting). Face moderately
prominent, convex, obtusely carinate, with whitish pile, proboscis black. Thorax
totally black, with long whitish pile; on the pleurae white and shaggy; scutellum
yellow, base black. Abdomen yellow, with a medial stripe, on the anterior mar¬
gin of the second segment dilated, the following segments with a single basal
band wholly black ; venter totally yellow. Legs reddish yellow ; posterior tarsi
in this specimen wanting. Wings pure hyaline, vein bright yellow ; third longi¬
tudinal vein branched, discal cell emits two veins.

Length 9 H mm. — Head yellow, occipital disc and an irregular vertical spot
black ; first two joints of the antennae brownish black, subequal (third wanting).
Face moderately prominent, convex, very obtusely carinate, pile white, medial
stripe black ; dorsal portion of the thorax black, golden pubescence, lateral mar¬
gins with a wide border that extends from the humeri to the suture and the pos¬
terior angles yellow ; pleurae yellow, marked with black, pile white, pectus and
metanotum black ; scutellum totally yellow. Abdomen yellow, with a medial
stripe ; second and the following segments with a single anterior band of black ;
venter totally yellow. Legs reddish yellow ; apex of the posterior tarsi brown.
Wings pure hyaline, veins bright yellow, third longitudinal vein branched, discal
cell emits two veins.

Cuba (Gundlach) Loew.

That these two descriptions apply to the same species as Mr. Loew
suo-g-ests, there is not the slightest doubt.

oo ' o

Odontomyia cincta Olivier.

Odontomyia cincta Oliv., Encycl. Meth. viii, 432, 3 ; Macquart, Dipt. Exot. i,
2, 189 ; Day, Proc. Acad. Nat. Sci. Phila. 1882, 87.

Stratiomys cincta Walker, List, etc., v, 39.

Odontomyia extremis Day, Proc. Acad. Nat. Sci. Phila. 1882, 80; Williston.
Can. Ent. xvii, 128.

Length 'J, 9 12 mm. . — Face and frontal triangle light green, with whitish

pile; vertical triangles and the proboscis black, ocelli yellow. Antennae red, tip
black. Thorax black with yellowish pile; lateral margins, scutellum and pleurae
green ; basal centre of the scutellum black, spines yellow, tips brown, pectus
black. Abdomen green, with a wide, irregular dorsal line of black, contracted at
the posterior edge of the second and third segments, forming a triangular, or a
keystone-shaped marking, that on the fourth square, and that on the fifth not
reaching the posterior margin, and laterally attenuated to the margin ; venter
green. Legs yellow, three terminal joints of the tarsi. Wings hyaline, veins
yellow ; discal cell emits three veins, third longitudinal vein branched.

9 . — Face, front and occiput green, shining ; frontal orbits with a prominent
black spot; ocellar triangle black; in some specimens the black is laterally ex¬
tended, and iu one this is narrowly connected with the spots on the frontal orbits ;
the lateral strip of the thorax wider than in the male, and the tomentum golden
yellow; scutellum totally green. Abdomen green, with a series of black dorsal
triangles : in some there are laterally extended on the second and third segments

TRANS. AM. ENT. SOC. XXII.

JULY. 1895.

254

CHARLES W. JOHNSON.

so as to form a band occupying one-half to two-thirds the anterior portion and
usually narrowly reaching the posterior margin ; band on the fifth segment occu¬
pying the anterior half. In other respects the color markings are the same as
those of the male.

St. Augustine, Flu., March 15 ; Cape May, N. J., June 14 ; Brook¬
ings, S. 1). (Aldrich); Connecticut (Williston); Douglas County,
Kansas, June; Buffalo, N. Y. (Univ. Kans.) ; Algonquin, Ill. 1 1 )r.
Nason); West Point, Neb., June (Univ. Neb.).

I have recently received from Mr. V. H. Lowe, of the New York
Agricultural Experiment Station, a 9 specimen measuring only 8
mm. ; it was taken at the Agricultural College, Michigan, June 17.

Odontomyia dorsalis Fabricius (PI. iv, fig. 9).

Stratiomys dorsalis Fabr., Syst. Anti. 82, 20; Wiedemann, Auss. Zw. ii, 66.

Odontomyia dorsalis (Fabr.) Osten Sacken, Catl. 47 (non 0. dorsalis White,
Zool. Voy. Erebus and Terror).

Length 9 9 mm.; wing 8 mm. — Face, front, vertex and occiput, an obscure
greenish yellow; translucent; minute yellowish pubescence, a spot on each side
of the an ten me extending to the orbits ; a transverse line obscurely interrupted
on the front and a spot on each side of the ocelli brownish ; ocellar triangle black,
ocelli yellow. Antennae and legs reddish brown, proboscis black. Thorax black,
with short golden pubescence ; a wide lateral line, pleurae, scutellum and spines,
yellow ; pectus black, halteres green. Abdomen dingy yellow, with an irregular,
blackish, dorsal line, consisting of a series of markings that are dilated at the
anterior, and contracted at the posterior margins of the second, third and fourth
segments; on the fifth it is only a small spot at the anterior margin ; venter yel¬
lowish. Legs red, the last two joiuts of the tarsi brown. Wings hyaline, veins
light yellow ; discal cell emits three strong veins; third longitudinal vein
branched.

One specimen, San Domingo (Frazer), University of Kansas coll.

This specimen agrees so well with Fabricius’ brief description,
that I feel very confident of its identification. Wiedemann gives its
habitat as “South America,” but Fabricius has “in America;
Insulis.”

Odont oinyia iiisrqnnlis Loew.

Odontomyia inieqnalis Loew, Centura vi, 24.

Length % 54. 9 liu. : wing ^ 4J, 9 32 lin. . — Head black, middle of
the lower part of the face, and from there to the edge of the anterior angle, light
yellow. Antennse black ; first and second joints blackish, underside brown, pro¬
boscis black, palpi light yellow. Thorax black, pile yellow ; pleurae wTith two
yellow spots, one irregular above the anterior coxse ; the other round in front of
the wing; scutellum black, broad apical margin and very short spines greenish
yellow, black at the extreme tip. Abdomen black ; posterior margin of the sec¬
ond, third and fourth segments broadly interrupted, greenish yellow; on the
second segment the markings are dilated and subtriangular, on the fourth some¬
what obsolete; venter wholly greenish yellow. Legs yellow, tarsi from the apex

NORTH AMERICAN DIPTERA.

255

of the first joint brownish black, the base of the second is, however, lighter.
Wings pure hyaline, veins decidedly yellowish, third longitudinal vein in one
simple, in the other with an obsolete rudimentary branch, discoidal cell emits
two veins.

9 . — Head yellow : occiput except the orbits black, front with four black spots,
upper spots together with the minute black spot on the vertex confluent; thus
also is formed a band on each side, which touches the margin of the eyes ; the
lower spots are obliquely drawn out, subcontiguous in the middle of the front
and touching on each side the margin of the eyes. Face moderately prominent,
convex, and adorned with a triangular black spot, proboscis black ; palpi light
yellow ; dorsum of the thorax black, with a slightly golden tomentum, posterior
angles greenish yellow ; pleurae greenish yellow, with a large black spot, which
is connected with the black of the pectus; scutellum black, apical margin broad,
spines small, greenish yellow : the extreme points black. Abdomen black, mar¬
gins of the segments separate ; lateral margins equal, posterior margins subequal,
greenish yellow; venter totally greenish yellow. Legs yellowish (tarsi in the
specimen described wanting). Wing pure hyaline, veins strongly yellowish, third
longitudinal vein branched, discoidal cell emits two veins, fourth near the base
very thin.

“Fort Resolution,” Hudson’s Bay Territory (Kennicot), Loew.

Orion toinyiu artuata Loew (PI. iii, fig. 35; PI. iv, figs. 7, 8).

Odontomyia arcuata Loew, Centur. x, 4 ; Day. Proc. Acad. Nat. Sci. Pliila.

1882, 80.

Length % 9 9-11 mm. 'J, . — Face and inferior orbits light yellow ; pile white,
an obscure transverse brownish line above the oral margin : fi'ontal and vertical
triangles black, ocelli yellow, proboscis black ; first and second joints of the an¬
tennae red ; third dark brown, and narrowly annulated with black : dorsum of
the thorax shining black ; pile yellow, sparse, but long and dense on the sides ;
posterior angles obscure brown, pleurae greenish yellow, pectus black ; scutellum
greenish yellow ; base black, spines yellow, tip brown. Abdomen green, with an
irregular black dorsal stripe, having the following contour: greatly contracted at
the margins of the second and third ; third and fourth, and the fourth and fifth
segments, mark on the fourth segment somewhat wider than those on the second
and third ; mark on the fifth only extending to the centre of the segment, later¬
ally attenuated; venter green. Legs yellow, tip of the first and the rest of the
joints of the tarsi brown. Wings pure hyaline, veins light yellow, discal cell
emits two strong veins, the other indicated only by an obsolete angle ; third lon¬
gitudinal vein branched.

9 • — Face, front, vertex and occiput yellow, pile light yellow ; vertex and front
with a transverse band of black, in the former not reaching the orbits, and some¬
times narrowly extending in the middle over the vertical angle, in the latter
sometimes narrowly divided in the middle and the frontal fossa is sometimes
black, connecting the frontal and vertical bands. In some specimens there is a
blackish, transverse marking above the oral margin, and in one specimen the
facial prominence and a small dot on each side is also blackish ; ocelli yellow,
proboscis black; first and second joints of the antennas red ; third dark brown.
Thorax black, with short, decumbent, golden-yellow pubescence, longer on the
sides ; posterior angles, pleurae, and in one specimen a small spot at the suture,

TRANS. AM. ENT. SOC. XXII.

JULY, 1895.

256

CHARLES W. JOHNSON.

greenish yellow; pectus black ; scutellum yellow, base narrowly black. Abdomen
greenish yellow : second, third, fourth and fifth segments with a wide, transverse,
black band, which does not reach the lateral or posterior margins ; posterior edge
of the bands on the second, third and fourth segments biarcuate; in some speci¬
mens this character is obsolete, or arcuated on the fourth. In the ten specimens
before me this character predominates, although it is not typical ; in one specimen
which closely resembles the type the marking on the second segment is triangular,
and ou the other segments the biarcuate edge is wanting, and the anterior edge
does not quite reach the margin of the segment towards the lateral portions

Six females, Los Angeles County, California, and one male San
Bernardino Mountains, California, July 28 (Coquillett) ; Texas
(Henshaw, coll. L. E. Hood); Denver, Col. (Beales); Rapid City,
S. D. ( Aldrich ) ; Reno, N ev. (Hillman).

The male from South Dakota differs in having the the upper por¬
tion of the face and the pleura; black ; still it undoubtedly belongs
to this species.

0<lontoiii.via llava Day.

Odontomyia flava Day, Proc. Acad. Nat. Sci. Phila. 1882, 76; Williston, Can.

Ent. xvii, 128.

'k . — Black. Head concolorous, an ten me black. Face small, black, clothed
with yellowish pile ; borders of the mouth slightly reddish. Thorax black,
clothed with golden pile ; scutellum black, the terminal spines concolorous,
halteres yellow. Abdomen yellow, with black median stripe, the yellow run¬
ning in at the incisures, thus forming connected quadrangular black spots in the
segments; venter yellow, immaculate. Legs yellowish; femora brown; tarsi
black, anterior and middle tibiae with a solitary brownish ring. Wings hyaline,
veins yellow, third longitudinal simple, the discal cell emits three veins, the
posterior being rudimentary. Long. corp. 5A lin. : long. al. 4 lin.

Hub. — Wyoming (Dr. Williston). Original description.

The following is Dr. Williston’s description and remarks on this
species in the “Canadian Entomologist.”

“ The type specimen in my collection is partly destroyed by An-
threni. I give as complete a description as it will permit.

“Length 11 mm. Head black, face of usual size, with two obscure yellowish
spots below clothed with light colored pile : dorsum of the thorax black, with
rather long light pile; scutellum black, the spines of the same color rather small
and approximate. Abdomen black, with a rather narrow yellow margin, and
with t wo slender, broadly interrupted, yellow posterior cross-bands (on the second
and third segments) ; venter yellow. Legs yellow ; femora at their base and the
distal part of the tarsi brown, the tibiae in their middle with a brownish ring.
Wing hyaline, veins yellow, third longitudinal vein furcate, third posterior vein
rudimentary.

“ Como, Wyo. Resembles 0. inequalis Loew, but differs in the
scutellum and abdomen.

NORTH AMERICAN DIPTERA.

257

Orioiitoniyia fill lav n. sp.

Length 8 mm. 9- — Face, front and occiput greenish yellow; shining, with
sparse whitish pile; vertex, an irregular transverse band on the front extending
downward in the centre and connecting with the subquadrate marking surround¬
ing the antennae, and a spot on each side of the oral margin black. Antennae
wholly black. Thorax black ; tomentum yellow ; lateral stripe and pleurae
greenish; lateral stripe sometimes slightly interrupted at the suture ; scutellum
entirely yellow, without spines. Abdomeu black, second segment with triangular
markings ; third and fourth with subtriangular markings at the posterior angles,
and the posterior margin of the fifth greenish yellow ; venter greenish yellow.
Femora and the outer half of the tibiae black ; all except the first joint of the
tarsi brownish black ; tip of the femora, basal half of the tibiee and first joint of
the tarsi reddish. Wings hyaline, veins yellow, third longitudinal vein branched,
discal cell emits three veins.

Four specimens, southern Georgia (Morrison), U. S. Nat, Mus.

Odonloinvia nigrirostris Loew (PI. iii, figs. 36, 37).

Odontomyia nigrirostris Loew, Centura vi, 19; Day, Proc. Acad. Nat. Sci.

Phila. 1882, 83.

? Exchostoma caloceps Bigot, Ann. Soc. Ent. France. 1879, 217.

Length % 9 12 mm. ^ . — Face, vertical and frontal triangles black, shining;
face with long, whitish pile; epistoma, cheeks and inferior orbits yellowish ; ocelli
yellow. Antennae black ; proboscis long, black. Thorax and pleurae black with
long yellowish pile; scutellum black, with a wide yellow margin ; without spines.
Abdomen black, marked with yellow ; a small marking at the posterior angle of
the first segment, which, with the large lateral marking on the second, forms a
triangle; those on the third and fourth consisting of an irregular transverse
mark at the lateral posterior margin, fifth with a narrow posterior margin ; venter
yellow. Legs black, tips of the cox®, base and tip of the femora, basal half of
the tibiae and first joint of the tarsi, yellow. Wings hyaline, veins yellow ; discal
cell emits three veins, third longitudinal vein branched.

9- — Face, front and occiput yellow; shining, pubescence yellow, face with a
large heart-shaped spot, and the vertex black, the black extending along the
frontal orbits about half way down the front, leaving a middle line of yellow,
which is contracted in the middle and forked at the top, but not quite reaching
the ocellar triangle ; in one specimen the black extends entirely across the upper
portion*. of the front leaving only two small spots below the ocelli ; a black line
extends from the vertex over the vertical angle. Thorax black, pilose on the
sides and pleurae, humeri small, spot at the suture, posterior angle and pleurae
yellow, spot at the suture sometimes obsolete; pectus black, two Small black dots
on the pleurae, one below the humeri and the other below the base of the wing ;
scutellum yellow, base (in the centre) black ; marking on the first and second
segments more prominent than in the male; that on the first much wider than
the anterior edge of the second, posterior edge attenuated aloug the posterior
margin; inner margin curved and forming, with the marking on the first seg¬
ment, a half circle ; in other respects it resembles the male in color.

Constantine, Mich. (Aldrich); Denver, Col. (E<« V. Beales);
Mantua Park, Col. (F. H. Snow, Univ. Ivans.); Custer, S. T). ; Big
Horn Mountains, Wyoming (Univ. Neb.).

TRANS. AM. ENT. SOC. XXII.

(33)

JULY, 1895.

258

CHARLES W. JOHNSON.

0<lon(om,via nigerrima Loew.

Odontomyia nigerrima Loew, Centur. x, 6; Day, Proc. Acad. Nat. Sci. Pliila
1882, 82.

The following is Loew’s description of the female :

Long. corp. 4 lin. ; long. al. 34 lin.— Black, shining, bare, short whitish pubes¬
cence. Head coneolorous, longitudinal fossa of the front and both margins- testa¬
ceous. Face extraordinarily prominent, protuberant, obtuse ; lateral margins of
the mouth strongly dilated ; proboscis black, stock slender ; head long and very
thick. Antennae slender, black ; first joint once and a half as long as the second ;
scutellum wholly black, teeth fusco-testac.eous ; posterior margins of the second
abdominal segment; third and fourth towards the side of the abdomen of a lu-
tescent color, thus three narrow bands are seen broadly interrupted ; the posterior
margin of the fifth segment wholly lutescent; venter black, with a broad unequal
disc, darkly lutescent; this abdominal picture in living specimens I suspect to be
wholly green. Legs black, apex of the femora, base and apex of the tibiae and
first and last joints of the tarsi, except the apex, “ fusco- luteo-testaceous.” Wings
hyaline, veins strongly brownish black; costal and third longitudinal subfuscous
towards the apex, third longitudinal vein with erect branch, discoidal cell emits
two veins

Middle States (Loew).

A male from Buffalo, X. Y. (PI. iv, fig. 25), in the collection of
the Kansas University I doubtfully refer to this species, it agrees
with the type, except that the third longitudinal vein is simple.

Length £ 8mm. — Face black; shining with long whitish pile; facial protu¬
berance very prominent, obtuse ; vertical triangle black. Thorax black, with
prominent blackish pile ; scutellum black, spines yellow. Abdomen black ; second,
third and fourth segments with small, sabtriangular yellow spots at the posterior
angles; fifth w-ith prominent lateral and posterior margins; venter greenish yel¬
low. Femora black; tips of the femora, the tibiae and tarsi, yellowish; medial
portion of the tibiae and the last two joints of the tarsi brown. Wings hyaline,
veins dark brown ; discal cell emits two veins, third longitudinal vein simple.

Odontomyia pilosus Day (PI. iv, figs. 13, 14).

Odontomyia pilosus Day, Proc. Acad. Nat. Sci. Phila. 1882, 76.

Odontomyia pyrrhostoma Bigot, Ann. Soc. Ent. France, 1887, 25.

Length 'J, J 11 mm. y Face and vertical triangle black; face with long,
dense, whitish pile ; oral margin and ocelli yellowish. Antennae black. Thorax
and pleurae black, with long yellowish pile; scutellum black, apical margin be¬
tween the spines and the spines yellow. Abdomen black, shining, with long
yellowish pile; second and third segments with a subtriangular yellow- marking
on the lateral posterior margin ; in some specimens these are contracted at the
angle, so that they reach the lateral edge only by a narrow line ; markings on the
fourth segment less prominent ; fifth segment w-ith a narrow lateral and posterior
margin ; venter yellow, w-ith two small brownish dots in the middle of the third
and fourth segments. Femora black ; coxae, tip of the femora, basal half of the
tibiae and basal joint of the tarsi yellow-, tarsi and outer half of the tibiae brown ;
the underside of the tibiae shows an apical and middle annuli of black. Wings

NORTH AMERICAN DIPTERA.

259

hyaline, veins brown ; discal cell emits two veins, third longitudinal vein
branched.

9 . — Face, front and vertex black, dense yellowish tomentum on the face and
occiput; vertical angle, a longitudinal line on each side of the frontal foveae, oral
margin and the lower part of the occiput yellowish ; in one specimen the mark¬
ings on the vertex and front are wanting ; dorsum of the thorax and the scutellum
with a dense yellowish tomentum, pilose on the pleurae and pectus ; abdominal
marking less prominent than in the male, and not subtriangular.

Los Angeles County and Santa Clara County, California, April
(Coquillett) ; Kern County, California (Univ. Kans.).

Odoutomyia texasiaua n. sp.

Leugth ^99 mm. 'k . — Face black, with light yellow pile. Antennae red ;
first and tip of the third joints black, proboscis black. Thorax black, with yellow
pile, posterior angle yellowish ; scutellum black, narrowly margined with dark
yellow, spines yellow. Thorax black, with prominent, yellow, triangular mark¬
ings at the posterior angles of the second, third and fourth segments; fifth with
a narrow lateral and posterior margin ; venter green. Femora black ; tip of the
femora, the tibiae and tarsi red ; tip of the tibiae (sometimes) and the terminal
joint of the tarsi brownish. Wings hyaline, veins yellow; third longitudinal
vein simple, discal cell emits three veins.

9 . — Facial orbits, front, vertical angle and occiput green ; vertex, two oblique
angular spots on the front, which are narrowly connected with the black above
the base of the antennae and the face, black. Antennae red ; first and tip of the
third joints black. Thorax black, with yellowish pubescence; a continuous lat¬
eral line, or only the humeri, an elongated spot before the suture and the poste¬
rior angles green ; pleurae green, sternum black ; scutellum black, with wide
lateral margins of green ; spines yellow. Abdomen black ; second, third and
fourth segments with lateral, subtriangular markings that are greatly attenuated
along the posterior margins ; on third and fourth these are sometimes united,
forming a wide posterior margin ; fifth with a wide lateral and posterior margin.

Texas (Amer. Eut. Soc.) ; Waco, Texas (Belfrage), coll. C. V.
Riley, U. S. Nat. Mus.

Odonlomyia tri villain Say (PI. iv, fig. 19).

Stratiomys triviUala Say, Jour. Ac. Nat Sci. Phila. vi, 160 ; Compl. Wr. ii, 356.

Odontomyia tritxniata JBellardi. Saggio, etc., i, 38, tab. i, fig. 17.

Odontomyia tritxniata Osten Sacken, Biol. Cent.-Amer. Dipt. 36.

Length 'J, 9 6-8 mm. 9 • — Face, front, vertex and occiput greenish yellow ; a
small black dot on each side of the facial prominence ; a transverse, wavy line
across the front that projects downward above the antenna? ; a spot on the orbits
opposite the base of the antennae, and a spot on each side of the ocelli brownish
(the frontal markings vary considerably, and are sometimes obsolete) ; ocellar area
and proboscis black. Antennae yellowish, tips brownish. Thorax brownish
black, narrowly divided by green lines into three broad vittae, these are widest
anteriorly, and gradually attenuated posteriorly; lateral stripe, pleurae and scu¬
tellum green, spines yellow ; metanotum and pectus brownish black. Abdomen
greenish, with a more or less prominent, black, interrupted, dorsal line, the black
markings surrounded by a brownish stain ; venter green. Legs yellow, terminal

TRANS. AM. ENT. SOC. XXII.

JULY, 1895.

CHARLES W. JOHNSON.

260

joints of the tarsi brownish. Wings hyaline, veins yellow; third longitudinal
veins simple, discal cell emits three strong veins.

% .—Face and base of the vertical triangle yellowish ; vertical triangle black.
Thorax black; lateral stripe (obsolete near the humeri), pleurae and scutellum
yellowish : base of the scutellum brown.

Ten specimens ; Bird’s Island, near Astor, Fla., May 1 1 ; St.
Augustine, Fla. (F. H. Gunning); Colorado (collection C. V. Riley,
U. S. Nat. Mas.) ; City of Mexico (Salle) ; Cuantle, Mex. (de Saus-
sure ) ; Guatemala (Champion).

The specimen ( % ) from Texas has the abdomen greatly discolored
(brownish). Most of the specimens before me have been collected
for some time, and are greenish yellow, but a specimen ( 9 ) recently
collected near Astor, Fla., is bright green. A specimen ( % ) re¬
cently taken by Mrs. Slosson at Ormond, Fla., the abdomen is bright
green.

Odoutoinyia vertebrata Say (PL iv, figs. 26, 27, 28).

Odontomyia vertebrata Say, Long’s Exped. App. 369; Compl. Wr. 251 ; Wiede¬
mann, Auss. Zw. ii, 73. 20; Bellardi, Saggio, etc., i. 38; Day, Proc.
Acad. Nat. Sci. Phila. 1882, 85.

Stratiomys ■vertebrata Walker, List, etc., v, 39.

Odontomyia WUlistoni Day, Proc. Acad. Nat. Sci. Phila. 1882, 78, 9-

Length % 8 mm. — Face brownish ; cheeks and oral margins black, facial promi¬
nence red. An ten me brown, base and tip black ; ocellar triangle black. Thorax
black, with whitish pubescence; posterior angle and scutellum red, base black,
spines light green. Abdomen yellowish white, with a variable dorsal line of
black, extending to the anterior part of the fifth segment; in some this line re¬
sembles that of 0. plebeja , but with edges more irregular, in others the line on
the second and third segments is narrow, and of a brownish color, while in others
it is broadly interrupted; the markings on the second and third segments con¬
sisting only of a spot at the anterior margins; the size of the roundish marking
on the fourth segment is quite constant ; venter yellowish white. Legs yellow.
Wings hyaline, veins light yellow, discal cell emits three veins, third longitudinal
vein simple.

Length 9 !l mm. — Face smooth, shining: front and vertex rugose; face and
front bearing two or three colors ; green with yellow and brownish black mark¬
ings, or a uniform yellow with the brownish black markings: the latter are ar¬
ranged as follows : a spot more or less prominent on each side of the oral margin :
a spot on each side of the facial prominence, a transverse line above the an ten me
not reaching the eyes ; an irregular transverse line across the front and vertex,
the ends of the latter sometimes curved downward and connecting with the
former; they are sometimes also connected by a central longitudinal line extend¬
ing from the ocelli, giving the front a reticulated appearance; occiput green, or
greenish yellow. Antennae black, second joint brown. Thorax black, with short
golden pubescence, forming in certain lights two dorsal stripes; humeri green, a
green lateral stripe commences just before the suture and extends to the base of
the scutellum ; this stripe contains a small black spot above the base of the wing ;

NORTH AMERICAN DIPTERA.

261

scutellura green, spines yellow; pleurae, green, with irregular black markings;
pectus black. Black of the abdomen consisting of a series of broad bands rarely
reaching the lateral margin, and having a triangle or square of green or greenish
yellow at the posterior angle ; posterior edge of the band on the fifth segment
with a deep sinus.

Fifteen specimens ( S 9 ), “the neck,” Philadelphia, June 27
(Charles Liebeck) ; Anglesea, X. J. ( £ 9 ), July 19 ; South Dacota
% 9 (Aldrich); Agricultural College, Michigan (Davis); Xewton-
ville, Mass. (Henshaw) ; St. Louis, Mo., July 28 (Riley); Mexico?
(Bellardi). I am doubtful whether Bellardi had Say’s species.

Orioutoinyia liydrolenoides n. sp. (PI. iv, fig. 10).

Length 9 7-10 mm. — Front, vertex, occiput and upper half of the face reddish,
lower half of the face blackish ; base of the antennae surrounded by black, from
which extends the following more or less prominent lines : a narrow line to the
ocellar triangle, a wider one over the facial prominence, the oblique lines to the
black on the lower part of the face and a narrow transverse line to the lower
part of the face; ocellar triangle black, the black extending over the vertical
angle. Thorax black, with short yellowish pubescence ; scutellura black, apex
and spines brownish (in one specimen yellow), spines very short. Abdomen
green, with a wide and quite regular black dorsal stripe; venter green. Legs
yellow. Wings hyaline, veins light yellow : discal cell emits two veins and shows
an angulation at the origin of the third vein, third longitudinal vein simple.

Toronto, Canada, July 7 (ffm, Brodie); Agricultural College,
Michigan, July 23 (Davis); Illinois (Amer. En't. Soc.); Ogden,
Utah, June 20 (collection C. V. Riley, U. S. Nat. Mus.).

I was inclined at first to consider this an introduced species (0.
liydroleon Linne, of Europe), but in comparing these with a speci¬
men from Germany, I hardly felt justified in uniting the two. The
European species differs from this in having the face almost wholly
reddish, the front and vertex noticeably narrower, the spines of the
scutel lum almost double the size and apical margin more prominent,
and the dorsal stripe of the abdomen wider and more irregular. The
force of the suggestion that 0. liydroleon has been introduced, seems
somewhat lessened when we consider the wide distribution of this
species. The male will probably closely resemble that of 0. virgo
or 0. pilimana.

Otlon tomyiu a 111 erica 11 a Day.

Odontomyia americana Day. Proc. Acad. Nat. Sci. Pliila. 1882, 77.

^ . — Black. Head black. Antenna} reddish brown ; the second joint as long,
or longer than the first. Face small, not prominent ; proboscis black. Thorax
black and covered with a yellowish white pubescence ; scutellura the same, the
apical spines being yellow; halteres green. Abdomen green, with a median
black stripe of nearly equal breadth throughout ; venter green, immaculate.

TRANS. AM. ENT. SOC. XXII.

JULY, 1895.

CHARLES W. JOHNSON.

262

Legs yellow. Wings hyaline, veins yellow, the third longitudinal simple, the
discoidal cell emitting two veins. Long. corp. 4 lin. ; long. al. 3 lin.

Hub. — California ( Baron).

The above is Dr. Day’s original description. To this Mr. W. A.
Snow adds the following : “ Head black, near oral margin brownish.
Antennae reddish. Face strongly receding ; pile white. Thorax
black, punctate, pile long, obscure whitish ; scutellum at the apex
and the spines yellow; halteres green, third vein is simple, four pos¬
terior cells. Length 9 mm. Two males, California (Baron). In
the Kan. Univ. collection.”

kSix females from Yakima City, Wash., in the Osten Sacken col¬
lection at Cambridge, labeled 0. cttnericana Day, has the face and
front a uniform shining black, and the median black abdominal
stripe nearly of a equal with and not dilated as in the female 0.
virgo Wied. The latter has not been recorded west of Kansas.

Dr. Williston says, “ 0. americana Day, is very distinct in the
moderately long pile (not ‘ pubescence’) of the metanotum.”

Odouf oin.viu A 1<I rich i n. sp. (PI. iv, fig. 17).

Length % 9 9-10 min. — Face and vertical triangle black ; shining with
whitish pile on the cheeks and facial orbits. Antennae reddish, tip of the third
joint black. Thorax black, with yellowish white pile, which is longest on the
pleurae and pectus; scutellum black, apical margin between the spines and spines
yellow. Abdomen entirely green, except a small, black, lunate spot in the middle
of the first segment ; in one specimen this is divided into two small arcuate spots ;
venter green. Legs yellow. Wings hyaline, veins yellow ; discal cell emits two
veins, the third indicated only by a slight angle of the discal cell, third longitu¬
dinal vein simple.

. — Face, front and vertex hlack, shining; pile sparse, whitish and arranged
in tufts on the frontal and facial orbits ; occiput black, with a dense, yellowish
pubescence; two small yellow spots on each side of the frontal fossa, below the
ocelli. Thorax hlack, with short yellow pubescence, whitish on the pleurae ; scu¬
tellum black, with black pubescence; inferior apical margin yellow.

Bilev County, Kansas, June (Marlatt) ; Sand Hills, Neb., July
$ (Aldrich), with the same habitat and data 9 ; and West Point,
Neb., £> June (Univ. Neb.).

Odontomyia virgo Wiedemann (PI. iv, figs. 31, 32, 33, 34, 35).

Odontomyia, rirgo Wied., Auss. Zw. ii, 69, 13.

Stratiomys virgo Walker, List, etc., v, 39.

Odontomyia plebeja Loew, Centur. x, 5.

Odontomyia nigra Day, Proc. Acad. Nat. Sci. Phila. 1882, 75.

Odontomyia paron Walker, List, etc., iii, 536.

Length % 9 7 TO mm. ; wing 6-8 mm. % . — Face black, shining, with whitish
pile; ocellar triangular black, ocelli brownish. Antennae reddish, terminal joint
dark brown. Thorax black, covered with yellowish pubescence, longest on the

NORTH AMERICAN DIPTERA.

263

pleurae ; scutellum black, spines yellow ; kalteres green. Abdomen varies from a
bright green to greenish yellow, or bright yellow, with an irregular black dorsal
stripe, forming on the second, third and fourth segments a series of keystone-
shaped markings, that on the fourth being usually the largest, stripe ending with
a triangular spot at the base of the fifth segment; venter green. Legs yellow.
Wings hyaline, veins yellow, discal cell emits two veins; third longitudinal vein
simple.

9 . — Face, front and vertex broad, shining black, with white pile, more con¬
spicuous in patches on the orbits; inferior orbits yellow; occiput with thick
whitish pubescence. Thorax black, with short yellowish white pubescence ; the
abdominal stripe usually wider than in the male, so that the green on the third,
fourth and fifth segments consists only of a narrow lateral, and on the fifth a
posterior margin.

Southeastern Pennsylvania and southern New Jersey, June and
July, common; Franconia, N. II. (Mrs. Slosson); Connecticut and
Virginia, June 13 (Williston) ; Algonquin, Ill. (Dr. Nason) ; Custer,
S. D. (Aldrich); West Point, Neb., June 24 (Univ. Neb.); Kansas
(E. W. Guilding) Day; Georgia (Wiedemann); southern Georgia
(Morrison); Colorado (Riley); Texas (J. B. Smith); Springfield,
Mass. (Dimmock); Agricultural College, Michigan (Lowe); Mur-
freesborough, N. C., June 8.

The above description is based on a series of over forty specimens.
Between the smaller specimen determined as 0. virgo by Loew, and
a somewhat larger one, the type of his 0. plebeja, I cannot draw
the line. The color of the antennae are variable, the third joint is
sometimes reddish, except the tip ; in others it is wholly dark brown,
while others show intermediate conditions.

0<lontomyia piliinana Loew (PI. iv, figs. 11, 12).

Odontomyia pilimana Loew, Centur. vi, 27; Day, Proe. Acad. Nat. Sci. Phila.

1882, 83.

Length 9 mm. ; wing 7 mm 9 • — Face, front and vertex black, shining, with
whitish pile, which is more conspicuous in patches along the orbits; a spot on
the lower part of the facial orbit and two small spots below the ocelli on each
side of the frontal fossa yellow ; occiput with dense whitish pubescence. An-
tenufe red, tip of the third joint black ; proboscis black. Thorax black, with a
dense aureus pubescence, whitish on the pleurae ; scutellum black, spines yellow ;
halteres green. Abdomen greenish yellow, with a black dorsal stripe, narrow on
the first and second, and expanding to three times this width on the third and
fourth ; fifth with an anterior central spot, leaving a posterior and lateral margin
of uniform width : venter green, or greenish yellow. Legs yellow. Wings
hyaline, veins yellow, third longitudinal with branch ; discal cell emits two valid
and one rudimentary vein ; four posterior cells and one submarginal.

. — Face, frontal and vertical angle black, with sparse whitish pile ; ocelli
yellow, facial protuberance prominent, obtusely carinate ; the abdominal stripe
not as wide on the third and fourth segments as in the female.

TEANS. AM. ENT. SOC. XXII.

JULY. 1895.

CHARLES W. JOHNSON.

264

Brookings, S. D. (Aldrich); Champaign County, Illinois (W. A.
Snow); Algonquin, Ill. (Dr. Nason); West Point, Neb., July
(Univ. Neb.).

Oriontomyin microstoma Loew (PI. iv, fig. 20).

Odontomyia microstoma, Loew, Ceutur. vi, 28.

Length 9 12 mm. — Face, front and vertex yellow, sparsely covered with yel¬
low pile below the antennae, shining above : first two joints of the antennae
brown, base of the first and outer end of the second darker, terminal joint black,
gradually tapering to a point; about half way between the antennae and ocelli
is a short, transverse line or spot ; ocellar triangle black, and on each side a
brownish spot ; occiput yellow. Thorax black, densely clothed with short, yel¬
low tomentum ; humerus and posterior angle yellow; scutellum yellow, spines
tipped with black, pectus black. Abdomen with a broad, brownish black dorsal
stripe, with lateral margins of yellow, the dorsal stripes varies greatly in color
from a uniform black with a yellowish triangle on the posterior margin of the
fourth segment to a brownish yellow, with the posterior margins of the segments
darker and sometimes a yellow interrupted dorsal line ; venter yellow, with a
dark brown marginal stripe. Legs yellow, two or three of the terminal joints
of the posterior tarsi brown. Wings hyaline, veins yellow, third longitudinal
vein simple, discoidal cell emits two veins.

Length 10 mm. — Face and vertical triangle black, the former with yellow
pile. Antennae black. Thorax uniform black, pile yellow ; scutellum black, with
a broad posterior margin of yellow. Abdominal markings uniform black, the
yellow triangle on the fourth segment very small or wanting. Femora, except
the tip, brownish black, a brown band on the middle of the tibia;, and the poste¬
rior tarsi brownish.

Common at Anglesea, N. J., July 19 ; Cape May, June 22 ; Mary¬
land (Aldrich); New York (Williston) ; Chelsea, Mass., July 31
(Henshaw).

I have only collected and received this species from localities near
the sea-shore. In the form of the third antennal joint there is quite
a divergence from the typical Odontonuse. A universal study of
this group may give it generic or subgeneric rank. Loew refers to
it as follows: “The last two segments of the third antennal joint in
this species forms a sufficiently acute style, as may be shown ; the
antennae of this are not dissimilar to those of Clitellaria, but the
downward course of the veins in this species demonstrates its place
in the Odontomyise.”

Odontomyia pubescens Day (PI. iv, figs, lo, 16).

Odontomyia pubescens Day, Proc. Acad. Nat. Sci. Phila. 1882, 77.

Length 9 10 mm. ; wing 8 mm. — Face and front black with yellow pubescence,
which is lighter and longer on the face; frontal longitudinal fossa with its mar¬
gins and a spot on each side of the ocelli yellow. Antennae black. Thorax black,
with short, golden-yellow pubescence; scutellum black, apical margin and spines

NORTH AMERICAN DIPTERA.

265

red. Abdomen black, with yellow transverse markings at the lateral posterior
margins of the second, third and fourth segments less prominent on the fourth ;
the markings on the second and third gradually enlarge toward the inner end ;
posterior margin of the fifth and lateral margins of all the segments yellow;
venter yellow. Legs totally reddish yellow. Wings hyaline, veins yellow, discal
cell emits two veins.

Described from a type specimen, the venter of which is discolored.
In the twenty specimens before me the venter (unless discolored) is
of a uniform greenish yellow ; the abdominal markings vary con¬
siderably, being sometimes of a uniform width. The color markings
on the front and vertex were apparently disregarded in the original
description.

'S — The yellow pile of the thorax is longer, the apical margin of thescutellum
slightly narrower and the abdominal marking more prominent, and sometimes
of a subtriangular form on the second segment.

In the specimens before me I see no trace of black on the tip of
the femora as originally described.

Denver, Col. (Beales); West Point, Neb., May; Brookings, S.
D., June 11 (Aldrich); Agricultural College, Michigan (Davis);
Brookline, Mass., May 27, June 12; and White Mountains, N. H.
(Henshaw); Maine; Canada (Mus. Comp. Zook); Arizona (Wil-
liston) ; California (Baron) ; Algonquin, Ilk, June 4 (Dr. W. A.
Nason).

The specimens from the Central States are somewhat smaller (8
mm.). In the Museum of Comparative Zoology, in Loew’s hand
writing, is a MS. name for this species ( Odontomyia latipes). This
species may readily be distinguished from 0. intermedia Wied. by
its uniform reddish yellow legs. Mr. Snow has informed me, and it
has been verified by Mr. Henshaw, by whom they were collected,
that the habitat New York, for the types, should be Massachusetts.
Day took the label “ Brook.” for Brooklyn, N. Y., instead of Brook¬
line, Mass.

Odoiitoin.yia interrupt;! Olivier (PL iv, figs. 29, 30).

Odontomyia interrupta Oliv., Encycl. Meth. viii, 433, 8.

Odontomyia intermedia Wied., Auss. Zw. ii, 64, 5.

Stratiomyn intermedia Walker, List, etc., v, 38.

Length ^98 mm. % . — Face black, with whitish pile, thickest on the sides;
ocellar triangle, antennae and proboscis black. Thorax black, with whitish pile;
scutellum black, apex brown, spines yellow. Abdomen black, the latral posterior
margin of the second, third and fourth segments light yellow, or greenish yellow,
thus three bands are seen broadly interrupted in the middle; this intermediate
space being about one-third the total width of the abdomen ; fifth with a narrow

TRANS. AM. ENT. SOC. XXII.

(34)

JULY, 1895.

CHARLES W. JOHNSON.

266

posterior margin and all the segments with a narrow lateral margin ; the mark
ings on the second segment are sometimes widened at the lateral margin forming
a triangle at the posterior angle; venter greenish. Femora black, tip of the
femora, basal half of the tibiae and tarsi, yellow ; outer half of the tibiae and tarsi
brown ; in some specimens the tibiae and tarsi are almost a uniform yellow, or
yellowish red ; in the latter case the posterior coxae are more or less yellow.
Wings hyaline, veins yellow, discal cell emits two veins, third longitudinal vein
simple.

9 . — Face black with white pile, front black with yellow pile ; frontal longitu¬
dinal fossa with its margins and a spot on each side of the ocelli, yellow; pubes
cence of the thorax short and of a golden-yellow ; margin of the scutellum promi¬
nent and yellow. Legs usually lighter than the £ .

Philadelphia, May 15; Brookline, Mass., May 27, June 12 (Hen-
sliaw) ; New York and Franconia, N. H. (Mrs. Slosson) ; Algon¬
quin, Ill., June 8 (I)r. AY. A. Nason); Brookings, S. D. ; West
Point, Neb., April (Aldrich); Minnesota (Amer. Ent. Soc.); Caro¬
lina (Olivier).

The black femora and the more regular size of the abdominal
markings distinguishes this species from the preceding, “except the
‘Rand mahl veil braun’ the description of 0 do ntomyia intermedia
applies exactly to this species.” (MS. note of Osten Sacken, Museum
of Comparative Zoology.

The species is also marked “ 0. crassirostris,” a MS. name given
by Loew in his collection at Cambridge.

Orioiitoinyia lioodiana Bigot.

Odontomyia hoodiana Bigot, Ann. Soc. Ent. France, xxxviii, 1886, 25.

Length 9 8-10 mm. % . — Face black, shining, with long yellow pile, ver¬
tical triangle black, ocelli yellow. Antennae black. Thorax black, shining, pile
yellow, long and dense on the pleurae ; scutellum black, shining, apical margin
between the spines and the spines yellow. Abdomen black, shining, pile yellow,
sparse; second, third and fourth segments with a transverse yellow marking at
the lateral posterior margin ; lateral and posterior margins of the fifth yellow :
venter greenish yellow. Femora black ; tips of the femora, tibiae and tarsi yel¬
low, tibiae with a medial band of black or brown, the outer portion of the tarsi
brown. Wings hyaline, veins reddish, discal cell emits two veins, the third indi¬
cated only by an obsolete angle

9 . — Face, front and vertex black, pile yellow. Thorax black, pubescence
short, yellow, procumbent; scutellum black, apical margin between the spines
and spine yellow. Abdomen black, shining, markings somewhat narrower than
in the male.

Tuolumne County, California ; British Columbia (Coquillett) ;
Craig’s Mountain, Idaho ( Aldrich).

This species is nearest related to 0. interrupta Oliv. and 0. pu¬
bescent Day, but differs in the absence of yellow markings on the
front and vertex, and the less prominent margin of the scutellum.

NORTH AMERICAN DIPTERA.

267

The only point in which these specimens differs from Bigot’s de¬
scription is in the abdominal markings, “ demi-bande subtrigonale
fanve,” but considering the great variation of its nearest allied spe¬
cies, especially in the male, which was Bigot’s type; 1 can only refer
these specimens to this species.

Odoutoiii.yiii hieroglyphic:! Olivier (PL iv, figs. 4, 5).

Odontomyia hieroglyphica Oliv., Encycl. Meth. viii, 434.

Length 'J, 10 mm. — Face black, pile yellow, facial protuberance prominent ; oc¬
ciput and a transverse facial marking (contracted in the middle) between the oral
margin and the facial protuberance but not reaching the eyes, yellow. An ten me,
brownish black ; base of the first and second joints reddish-. Thorax black, with
long, thick, yellowish pile; scutellum black; lower edge of the outer margin
yellow, spines small, yellow. Abdomen black, pile yellow, much wider than the
thorax ; second segment with a large lateral triangle ; third and fourth with a
subtriangular marking at the posterior angles, largest on the third ; posterior
margin of the fifth and the lateral margins of all except the first segment, yellow ;
venter greenish yellow ; fourth segment with a medial, black square, in the centre
of which is a yellow spot ; fifth with a narrow anterior margin. Femora black ;
distal half of the tibiae and last two joints of the tarsi, brown ; tips of the femora,
basal half of the tibiae and tarsi yellow. Wings hyaline, veins light yellow, discal
cell emits three veins, third longitudinal vein simple

Length 9 H mm. — Face, front, vertical angles and occiput, green ; shining,
with sparse, yellow pubescence ; a subquadrate black spot surrounds the base of
the antennae ; the lower edge of which has prominent projections at the angles
and on the facial prominence, the latter connecting with the edges of the oral
margin ; a short, transverse line extends on each side from the frontal orbits about
midway between the antennae and vertex, and a line the width of the ocelli across
the vertex black. Antennae and proboscis black. Thorax black, with short, yel¬
lowish pubescence : humeri, lateral stripe and scutellum, green ; spines yellow ;
pleurae green, with a black spot that is connected with the black on the pectus.
Abdomen black ; first segment with small, green triangles at the posterior angles;
second with prominent ones, those on the third about one-half the size of those
on the second, and those on the fourth about one-half the size of those on the
third ; posterior margin of the fifth, and a narrow lateral margin on all the seg¬
ments and venter green. Legs black ; tipis of the femora, basal half of the tibiae,
and the first three joints of the tarsi yellow; the outer half of the anterior and
middle tibiae are brownish black. Wings yellowish hyaline, veins brown, discal
cell emits three veins ; third longitudinal vein simple.

Massachusetts, July (Univ. Ivans.) ; Virginia (Amer. Ent. Soc. ) ;
District of Columbia, May 19; Allegheny, Pa., June 7 (Aldrich);
Carolina (Loew) ; Morris County, N. J., June 25.

Odontomyia siinilis n. sp. (PI. iv. fig. 6).

Length 9 10 mm.; wing 8 mm. — Face, front and occiput, yellow; shining,
with yellow pile; edge of the oral margin black and connected with a large,
black, arrow-shaped spot that surrounds the antennae; from this extends a frontal
line about half way to the ocelli, and from this extends, at right angles, wavy

TRANS. AM. ENT. SOC. XXII.

JULY, 1895.

CHARLES W. JOHNSON.

268

line? to the orbits: vertex, antennae and proboscis black. Thorax black, with
yellow pile, a small spot at tbe humeri ; posterior angles and a lateral line ex¬
tending to the base of the suture, yellow; pleurae yellow, with two black spots,
the anterior one connected with the black of the pectus; scutellum yellow;
spines small, lialteres light yellow. Abdomen black, with yellow and black pile ;
second segment with a subtriangular marking at the lateral posterior angles :
third and fourth with a transverse marking on the lateral posterior margins;
that on the fourth about one-half the size of that en the third ; fifth with a lateral
and posterior margin ; lateral margin narrowing anteriorly ; vertex yellow.
Femora black, distal half of the tibiae brownish black, the anterior and middle
tibiae showing on the underside an apical arid medial annuli, tip of the femora
and base of the tibiae yellow, base of the tarsi red, the remainder a dark brown.
Wings hyaline, veins reddish, discal cell emits three veins.

One specimen* Colorado (J. M. Aldrich).

This species is nearest allied to 0. hieroglyphica, but differs in
having a much narrower front, a short longitudinal frontal line of
black, the absence of a continuous lateral line on the thorax and
narrower abdomen. The specimen before me is bright yellow, while
0. hieroglyphica is bright green, but this is of little moment.

O'loiitoiii.yiu occipitalis n. sp. (PI. iv, figs. 23. 24).

Length ^ 9 10 mm. % . — Face, frontal and vertical triangle black ; shining,
with whitish pile; lower half of the face more or less yellowish. Antennae, first
and basal half of the second brown, outer half of the second, and tbe third black ;
ocelli yellow. Thorax black, with yellowish pile; most prominent on the pleurae;
pleurae marked irregularly with yellow (in one specimen black), pectus and scu¬
tellum black ; a narrow apical margin between the spines and the spines yellow;
spine very small. Abdomen black, segments marked with yellow as follows :
second with a wide, lateral margin, slightly protracted along the lateral posterior
margin ; third and fourth with a narrow lateral margin and a triangle at the
posterior angles (in one specimen obsolete on the fourth) ; fifth with a narrow,
lateral and posterior margin; venter yellow ; base of the third, fourth and fifth
segments narrowly margined with black ; margin interrupted on the third.
Legs black, tip of the femora, base of the tibiae and tarsi yellow ; outer half of
the tarsi brownish. Wings hyaline, veins dark brown ; discal cell emits three
veins, third longitudinal vein simple.

9 —Face, front and occiput yellow, the latter very prominent : mouth, and
on each side, and at the upper angle of the oral margin, black; a large, black,
transverse spot surrounds the base of the antennae, which project above and below
the antennae and at the lower corners; a transverse black spot extends from the
frontal orbits and almost connects with that surrounding the antennae: a large
black spot surrounds the ocelli, which is very narrowly attenuated to the vertical
orbits; a narrow line also extends over the vertical angle. Thorax dull black,
with very short yellowish pubescence ;• posterior angle, from which extends a
post-alar line nearly reaching the suture, and the pleurae yellow ; scutellum black,
widely margined with yellow. Abdomen dull black ; the markings differ from
those of the male in being less triangular, and might be described as lateral mar-

NORTH AMERICAN DIPTERA.

269

gins, slightly widening at the posterior angles ; posterior margin of the fifth sub-
triangular, there is also an obsolete spot near the posterior angle of the first seg¬
ment : tarsi lighter than in the male.

Pennsylvania; Virginia (Amer. Ent. Soc.).

The above description is based on one female (Pennsylvania) and
two males (Virginia) in the collection of the American Entomological
Society. In antennal characters it closely resembles O. flavicornis
Oliv., but the eyes of the male are glabrous. The species is readily
distinguished by its dull black color and absence of prominent lateral
transverse markings.

Orioiitoinyla flavicornis Olivier (PI. iv, figs. 21, 22).

Odontomyia flavicornis Oliv., Ency. Meth. viii, 433, 9 ; Macquart, Hist. Nat.
Dipt, i, 243, 4 ; Day, Proc. Acad. Nat. Sci. 1882, 87.

Stratiomys flaviceps Macquart, Hist. Nat. i, 245.

Stratiomys corona, t a Guerin, Iconogr. Texte, 544, tab. 98, fig. 5.

Stratiomys pnlchella Macquart, Dipt. Exot. i, 1. 180, 3; tab. xxii, fig. 2.

Stratiomys vicina Macquart, Dipt. Exot. i, 1. 181, 4 (“ 'J, of S. flaviceps ?’’)
(non Odontomyia vicina Macq., Dipt. Exot. i, 188, 11, Cuba).

Odontomyia lasiophthalma Loew, Centur. vi, 23, 'J, .

Length ^ 9 mm ; wing 7 mm. — Face black, whitish pubescence, a spot on the
facial orbits and on each side of the oral margin yellow; eyes conspicuously
pilose: first and second joints of the antennae yellow, third brownish black ; the
first joint more than double the length of the second. Thorax black, with yel¬
lowish pile ; posterior angle, a large angular and small ovate spot on the pleurae,
yellow ;.scutellum black, narrow margin and spines yellow, spines small, haltercs
green. Abdomen black, jvith greenish yellow markings ; second segment with
large lateral triangles ; third with a subtriangular marking at the posterior angles,
not reaching the anterior margin ; fourth with transverse markings at the lateral
posterior margin ; fifth with lateral and posterior margin ; venter greenish yel¬
low. Femora black ; tips of the femora, tibiae and tarsi yellow, posterior tibiae
with a middle and apical band, and the tips of the tarsal joints red. Wings
hyaline, veins light yellow, discal cell emits three veins, third longitudinal vein
simple.

9 . — Face, front and occiput yellow ; vertex, a large quadrate spot surrounding
the antennae, an Av-shaped marking on the front, facial groove and a spot on the
epistoma margin black. Thorax black, with yellow pubescence : humeri, lateral
stripe, scutellum and pleurae, yellow; pectus black. Abdomen black, lateral
margin of the first, a large triangle in the posterior angles of the second and
third, an elongated spot at the posterior angle of the fourth occupying about
two-fifths of the posterior margin ; posterior margin of the fifth, and a narrow
lateral margin on all the segments, yellow ; venter yellow.

Delaware County, Pennsylvania, July 7. Two specimens, Illinois
(Amer. Ent. Soc.); New York (Loew); Caldwell, A. J. (Crane);
North Carolina (Riley).

TEANS. AM. ENT. SOC. XXII.

JULY. 1895.

270

CHARLES W. JOHNSON.

Odonlomyia obxcura Olivier.

Odontomyia obscura Oliv., Euey. Meth. viii, 433, 7 ; Maequart, Dipt. Exot. i,
2, 189; Day, Proc. Acad. Nat. Sei. Pliila. 1882, 88.

Odontomyia brevipennis Oliv., Ency. Metli. viii. 434, 13; Day, Proc. Acad.
Nat. Sci. Pliila. 1882, 86.

? Strati omys obscura Walker, List, etc., v, 38.

Length % 10 mm. — Face and vertical triangle black with yellow pile ; first and
second joints of the antenna; yellow, extreme tips of each brownish ; third joint
black, proboscis black. Thorax black, densely covered with yellow pile ; scutel-
lum black, spines small, yellow; halteres greenish. Abdomen black, with dense
yellow pile ; second and third segments with yellow triangles at the posterior
angles (smallest on the third), which are greatly attenuated along the posterior
margin ; a narrow lateral margin of yellow to all except the first segment ; there
is a slight extension of this margin along the posterior edge of the fourth ; venter
yellow, slightly marked with black. Femora black, tips of the femora, tibiae and
tarsi yellow, an obsolete medial and apical baud on the anterior and middle tibiae
and the outer half of the posterior tibiae brownish. Wings hyaline, veins yellow,
discal cell emits three veins, third longitudinal simple.

9- — Face, front and vertex black ; shining, with whitish pile, facial protuber¬
ance prominent; vertical angle, occiput, a transverse band across the upper por¬
tion of the front (slightly interrupted), two irregular spots between this and the
antennae, which are laterally attenuated and narrowly connected with spots on
the orbits opposite the base of the antennae ; cheeks and a spot on each side of
the upper angle of the epistoma yellow. Thorax black, with yellowish pubes¬
cence, pilose on the pleurae and pectus; an irregular spot on the pleurae and scu-
tellum greenish yellow; spines yellow and very small. Abdomen black; the
yellow triangles are obsolete, but indicated by the much longer, whitish tomen-
tum, two yellow subdorsal spots on the posterior margin of the second segment
represent the inner angles of the triangles so prominent in the male ; a narrow,
continuous, lateral margin to all except the first segment, and the posterior margin
of the fifth yellow : venter black, posterior margin of the first, and a large quad¬
rate mark on the second, greenish yellow.

St. Augustine, Fla., S ; Charlotte Harbor, Fla., March, % 9
(Mrs. Slosson) ; Carolina (Olivier) ; Boykins and Norfolk, Va., June
10, 12.

Olivier undoubtedly had the male and female of the same species.
The specimens before me agree so well with his descriptions that I
have no doubt of their identity.

Odontomyia viridis Bellardi (PI. iv, fig. 18).

Odontomyia viridis Bell.. Saggio, etc., i, 36, tab. i, fig. 16.

9 . — Green, marked with black. Head broad, front very broad, with trans¬
verse black stripes; first on the vertex ; third at the base of the antennae; second
intermediate, arcuate, and interrupted; eyes small, obsoletely tomentose ; poste¬
rior margin green. Antennae short, reddish. Face green, prominent, with two
black spots, epistoma near the sides black, palpi yellow, proboscis thick, wholly
black ; dorsum of the thorax black, golden tomentum ; a broad, green, longitu¬
dinal stripe from the humeri to the base of the wings; lateral margin black.

NORTH AMERICAN DIPTERA.

271

pleurae green, pectus black ; scutellum green, spines yellow, very short, halteres
green. Abdomen short, depressed, subquadrate, posterior subtruncate; grpen
with black markings; first segment immaculate, marking on the second trian¬
gular, anterior and posterior dilated, uear the side curved ; third, fourth and fifth
broadly marked, anterior dilated, posterior attenuated, marking along the whole
anterior margin of the segments, except on the fifth ; posterior margin not con¬
tiguous; venter green. Femora black; extreme tip of the femora, tibim and
tarsi yellow ; extremity of the tarsi brown. Wings hyaline, anterior margin
yellowish. Length 7 mm. ; wing 14 mm.

Cuantla, Mexico (Saussure), Bellardi.

Length % 9 mm. —Face black, with whitish pile; facial tubercle very promi¬
nent, obtuse, shining; occiput and inferior orbits obscurely yellow, vertical tri¬
angle and a line extending over the vertical angle black ; eyes covered with a
long whitish pile. Antennae dark brown. Thorax black, with long, dense, yel¬
lowish pile ; posterior angle yellowish ; scutellum black, sides narrowly margined
with yellow, and with yellowish pile. Abdomen with a wide, irregular, dorsal
stripe of black, leaving the following yellowish markings; a prominent lateral
triangle on the second, third and fourth segments (those on the second and third
contiguous, while those on the fourth confined to the posterior angles) and a nar¬
row lateral and posterior margin on the fifth ; venter green. Femora black ; tip
of the femora, tibite and tarsi, yellow ; the two terminal joints of the tarsi brown .
Wings hyaline, veins yellow, discal emits three veins, third longitudinal vein
branched.

Texas £ (Amer. Ent. Soc.) Waco, Texas 9 (coll. C. V. Riley),
U. S. Nat. Museum.

Bellardi described only the 9 .- with which the specimen I have
examined agree so well, that I think there is no doubt of its deter¬
mination.

Oilontoinyia mcvicana n. sp.

Length £ 9 6 mm. £. — Face black, shining, with sparse, whitish pile; oral
margins yellow. Antenuse yellow, third joint brownish. Thorax and scutellum
black, with whitish pile; spines yellow. Abdomen greenish white, with an ir¬
regular black dorsal stripe, consisting of a wide spot on the first, a narrow trian¬
gular marking on the second and third, a roundish mark on the fourth, and a
small spot at the anterior margin of the fifth ; venter greenish white. Legs yel¬
low; femora, except the tip and terminal joint, brownish. Wings hyaline, veins
light yellow, discal cell emits three veins.

9 . — Face, front, vertex and occiput, greenish yellow; a transverse line on the
vertex, an interrupted line on the front, a line or spot on each side of the an¬
tenna:, not reaching the orbits, a spot on each side of the facial prominence and
mouth, black. Thorax black: pleurfe and a lateral stripe green, lateral stripe
tapering anteriorly; scutellum green. Abdomen greenish, dorsal stripe inter¬
rupted, consisting of a small spot on the first, a small spot at the base of the
second and third, a larger spot reaching both margins on the fourth, and a small
spot at the base of the fifth segment.

Tehuantepec, Mexico (collection C. V. Riley, U. S. Nat. Museum).

TRANS. AM. ENT. SOC. XXIX.

JULY, 1895.

272

CHARLES W. JOHNSON.

This may possibly be the species referred to 0. vertebrata Say, by
Bellardi. I doubt if Bellardi and Say had the same species.

Doubtful and Undetermined Species.

Odontomyia L<efebvrei Macquart.

Odontomyui Lefebvrei Macquart. Dipt. Exot. i, 1, 189.

Odontomyia Lefebvrei Bellardi, Saggio, etc., i, 33.

Stratiomys Lefebvrei Walker, List, etc., v, 40, et 311.

Face vert, un peu crenee ;i petits spoils blance ; antennes; les deux premiers
articles verdatres, troisieme noir, a premiere division jaunatre, et les suivantes
egalement jaunatres-en-dessous sculement. Thorax noir, a poils jaunatres; cotes
et poitrine verts, a poils blancs; ecusson vert a base noire pointes vertes. a ex-
tremite noire. Abdomen vert a large bande dorsal noire legerement crenelee a
chaque segment; un point noir de chaque cote des troisieme et quatrieme, au
bord anterieur; ventre vert. Pied vert; cuisses anterieures d extremite noir;
intermediaires et posterieures egalement terminees de noir en-dessus sculement;
jambes d’un vert jaunatre, a moitis posterieure noire ; t arses noirs; premier ar¬
ticle des posterieurs a base jaunatre. Balanciers vert ailes claires, a bord exte-
rieur jaunatre cinq cellules posterieures (Macquart).

Mexico £ 5 2 1.

'J, . — Green and black. Head thick. Thorax broad; eyes naked, contiguous at the
base of the front ; above minute and below very minutely reticulated ; behind black,
margined with green; occiput green, maculate; front small, triangular, black,
pile yellow: ocelli greenish, first and second joints of the antennae yellow, third
black ; face prominent, carinate, green : pile silvery, palpi yellow : proboscis yel¬
low, apex black. Thorax subrotundate, slightly convex, shining, black : pile
dense, yellow, a small broad green spot extends from near the base of the wings
to that of the scute! 1 urn ; pleurae and pectus green, pile white, scutellum green,
base black, halteres green, base yellow. Abdomen subquadrate, depressed, green ;
all the segments with a dorsal stripe, stripe broad, black ; sides subregular; ante¬
rior margins of segments subdentate, lateral margin of the abdomen with black
dots ; dots either four, two, or wanting: venter convex, green, pile silvery. Legs
greenish yellow ; upperside of the apex of the femora marked with black ; tibiae,
at the apex broadly black : tarsi black, base of the first joint reddish. Wings
longer than the abdomen, hyaline, anterior margin yellow.

9.— Front broad, above black, with obsolete green dots, below green: eyes
small, naked, very minutely reticulated, posterior margin thick, green ; occiput
green, with two black stripes; pubescence on the thorax thin, a broad lateral
margin from the humeri to the scutellum green ; scutellum totally green. Ab¬
domen broad, black, maculated with green, first segment scarcely maculated near
the margins; lateral margin of the second broadly maculated, the anterior and
posterior margins of the macula produced, falcated towards the dorsal line; lateral
margin of the third and fourth subrotundate, lateral and posterior margins con¬
tiguous, and divided at the highest part of the segment ; fifth segment immacu¬
late, posterior with a transverse band of green (Bellardi).

Length ^ 15 mm. ; wings 24 mm. 9 16 mm. ; wings 28 mm.

Mexico (Craveri, Truqui) ; Orizaba, Toluca (de Saussure),

NORTH AMERICAN DIPTERA.

273

Odontomyia Trnquii Bellardi.

Odontomyia Truquii Bellardi, Saggio, etc., i, 37, tab. 1, fig. 11.

“ Black and green. Head broad, front broadly black, above with two green
spots, below green ; ocelli brownish; occiput green, with obsolete, lateral, brown
marks; eyes small, bare, minutely and regularly reticulated, posterior margin
thick, green ; first and second joints of the antennae brown, third black ; face
green, shining, carinate, white tomentose on the middle, thin, subnaked ; palpi
greenish white, proboscis yellow, apex black. Thorax black, with thin, short,
golden pubescence; lateral margin from the humeri to thescutellum with a broad
green stripe; pleurae and pectus green, pile white ; scutellum totally green, spines
yellow, halteres green, base yellowish. Abdomen broad, depressed, black macu¬
lated with green ; first segment near the margins scarcely marked, second broadly
marked, lateral margin contiguous, anterior and posterior margins produced, the
appendix round towards the elongated median line, third and fourth with a sub-
quadrate macula, lateral and posterior margins contiguous, fifth with a posterior
margin ; venter green, with very short, silvery tomentnm. Legs green and brown,
base of the femora green, near the apex, and especially on the upperside, brown¬
ish ; base of the tibiae and base of the first joint of the tarsi broadly brownish ;
apex of the tibiae and tarsi black. Wings hyaline, anterior margin yellowish,
base brownish. Length 16 mm. ; wings 28 mm.” (Bellardi)

Cuernavaco, Mexico (Truqui). Collection of Bellardi.

“Allied to the preceding [0. Lefebvrei ,] but distinguished by the
first antennal joint being brown, large macula on front, and the
figure of the marking on the second segment, quadrate markings on
the third and fourth segments and the femora, being spotted with
brown.” (Bellardi)

This is certainly very close to 0. binotata Loew, and may prove
to be that species ; if so, it has priority.

Odoii t oniy i ;i prasiua Jaennicke.

Odontomyia prasina Jaennicke, Nene. Exot. Dipt. 16 (in the Abliandl. d
Senekenb. Ges. vol. vi).

^ . — Green, thorax black, with yellowish pilose. Abdomen with a black stripe
and two lateral black dots. An ten use black. Length 13 mm.

Mexico. “This species stands very close to 0. Lefebvrei Macq.
(Dipt. Exot. i, 139); it is, however, distinguished from the same as
follows ;

“1. The first two antennal joints are black, and the second is, at
the base and at the tip, clear brownish red ; the third joint is black
above, beneath clear brownish red.

“ 2. The thorax above is covered with fox-red pubescence.

“ 3. The femora are entirely yellow without black markings, other¬
wise everything as in O. Lefebvrei Macq., Mus. Darmst.” (Jaennicke).

TRANS. AM. ENT. SOC. XXII.

(35)

JULY, 1895.

274

CHARLES W. JOHNSON.

O'lonf omyia allinis Bellardi.

Odontomyin affinis Bell., Saggio, etc., i, 35; tab. i, 12.

9 . — Black and yellow. Head broad, front broadly black above, below yellow,
with two black, arcuate stripes. Antennae black, second joint yellow ; face promi¬
nent, carinate, yellow: pile white, obsolete; palpi yellow, apex brown, proboscis
towards the extremity black ; eyes small, bare ; posterior margin broadly yellow ;
occiput yellow, hinotated with chestnut. Thorax black, yellow tomentum, pos¬
terior marked with green ; pleurae and pectus greenish yellow, pile yellow ; scu-
tellum totally green, spines yellow, halteres green, base yellow. Abdomen rather
long, depressed, with a broad, continuous, medial, black stripe: margins subpar¬
allel, anterior angles of the third and fourth segments with a lateral black dot:
venter yellow, immaculate, bare. Legs yellow : femora, tibiae and first joint of
the tarsi yellow; apex of the tibiae and first joint of the tarsi and all of the other
joints of the tarsi, black. Wings hyaline, anterior margin brownish (Bellardi).

Length 13 mm. ; wings 23 mm.

Puebla, Mexico (de Saussure). Collection of de Saussure.

Odonf omyin «lissiinilis Bellardi.

Odontomyin dissimilis Bell.. Saggio. etc., i. 35 ; tab. i, figs. 13, 14.

% . — Black, maculated with yellow. Head small ; eyes naked and contiguous at
the base of front, above minute, and below very minutely reticulated ; front and
occiput black : ocelli pale. Antennae short, black ; face scarcely prominent, cari¬
nate, black yellow pile ; epistoma maculate with yellow near the sides. Thorax
slightly convex, black, immaculate, yellow pile ; pleurae and pectus black, golden-
yellow pile; seutellum black, margined with yellow; halteres light yellow, base
brown. Abdomen elongate, depressed, light- yellow, with dorsal stripe, stripe
black, irregular, first segment totally black ; markings on the second and third
segments broad, posteriorly attenuate; fourth subquadrate; fifth subtrapezoidal ;
venter yellow, base, with two black spots. Legs black and yellow ; base of the
femora broadly black, apex yellow: tibiae yellow, apex brown; tarsi blackish,
base of the first joint yellow. Wings hyaline, near the anterior margin scarcely
yellow.

9 . — Front broad, yellow, with three black, transverse stripes, first on the ver¬
tex, third at the base of the antennae and towards the face acutely dentate, second
intermediate, arcuated in the middle; posterior margin of the eye light yellow ;
pubescence on the thorax very short, golden, marked with yellow on the posterior
margin between the base of the wings and seutellum; pleurae light yellow, pectus
black. Abdomen black, lateral and posterior margins of the segments yellow,
base of the anterior femora narrowly black, posterior brown, scarcely marked
with black (Bellardi).

Length 11 mm. ; wings 18 mm.

City of Mexico (Truqui). Collection Bellardi.

Oriontoiiiyia qusulriiiiaciilala Bellardi.

Odontomyin quadrimaculata Bell., Saggio, etc., i, 37, tab. i, 15.

— Black, with reddish yellow marking and yellow pile. Head small, eyes
pubescent and contiguous near the base of the front; front small, ocelli pale.
Antennae short, black; face prominent, black, shining-, pile yellow; proboscis
black. Thorax, pleura*, pectus and seutellum black, pile yellow; spines of the

NORTH AMERICAN DIPTERA.

275

scutellum short, yellowish; halteres yellow. Abdomen broad, short, suborbicular,
depressed, black; third and fourth segments near the angle of the lateral and
posterior margins marked with reddish yellow, margins of the fifth segment red¬
dish ; venter reddish yellow; base and inferior vitta of femora black; apex of
the femora, the tibiae and tarsi reddish yellow; apex of the tarsi brown. Wings
hyaline, anterior margin yellowish (Bellardi).

Length 7 mm. ; wing 14 mm.

Mexico (Craveri). Collection of Bellardi.

Orfontoniyia femorata Bellardi.

Odontomyia femorata Bell., Saggio, etc., i, 37.

9 . — Black, marked with yellow ; tomentum yellow ; front broad, black, with
a transverse stripe and two dots near the base of the antennae yellow ; first and
second joints of the antennae black, third wanting; face yellowish, with obsolete
yellow hairs, strongly produced, middle tuberculate, tubercle marked with brown,
margins of the epistoma marked with black : proboscis black. Thorax black,
tomentose yellow ; lateral margins and posterior macula yellowish ; pleurae yellow,
pectus black ; scutellum black, with a broad yellow border, spines yellow ; halteres
yellow. Abdomen depressed, black, tomentose yellow; second, third and fourth
segments near the lateral margin yellowish ; venter yellow, immaculate. Legs
yellow, underside of the anterior and posterior with a short black vitta, apex of
the. tarsi brown. Wings hyaline. Length 8 mm. ; wing 16 mm. (Bellardi).

Toluca, Mexico (de Saussure). Collection de Saussure.

This may possibly be the 9 of the preceding ( 0. quad rimacu lata).

Odontomyia emarginata Macquart.

Odontomyia emarginata Macquart, Dipt. Exot. i, 1, 190.

Stratiomys emarginata Walker, List, etc., v, 40.

Length 41 1. $ . — Black. Abdomen yellow, with a broad, biemarginate, black
stripe. Face a little prominent, black, with short, white pile. “ Front anterieu-
rement Mane.” Antennae black. Thorax entirely black, with short yellow pile;
posterior border of the scutellum and spines yellow. Abdomen yellow (perhaps
green when living), a large dorsal strip of black, profoundly indentated at the
posterior margin of the second and third segments; venter greenish yellow. Legs
tawny or brownish, femora more or less black above ; tarsi brown ; halteres white.
Wings hyaline, outer margin slightly yellow, five posterior cells.

Mexico (Macquart).

Odontomyia llavifasciata Macquart.

Odontomyia flavifasdata Macquart, Dipt. Exot. 4e, Suppl. 53.

Length 6 1. 9 • — Black. Abdomen maculated on the sides with yellow ; second
segment with a yellow band. Face greenish yellow, carinate; front black and
prominently separated by grooves in four parts ; base yellow. Anteume, first
and second joints testaceous, third black ; back of the head margined with yel¬
low. Thorax black, a yellow stripe extends from the anterior to the posterior
margin on each side above the insertion of the wings ; pleurse and pectus green,
with a long yellow spot; pile yellow; scutellum yellow. Abdomen black ; second
segment with a large band of greenish yellow interrupted in the middle ; third
and fourth with an almost square yellow spot on each side ; fifth margined with

TRANS. AM. ENT. SOC. XXII.

JULY, 1895.

27(5

CHARLES W. JOHNSON.

yellow; first three segments of the venter yellowish, posterior margin of the
third black ; fourth yellow, with a central spot and posterior margin of black ;
fifth with four spots on the anterior margin, and the posterior margin yellow.
Femora greenish yellow, tips testaceous; tibiae testaceous, tips of the anterior
ones brown, tarsi black, metatarsi testaceous: outer margin of the wings yellow,
five posterior cells.

Mexico (Macquart).

Odon I oin,> ia ruhricoriiis Macquart.

Odontomyia rnbricornis Macquart, Dipt. Exot. Kuppl. i, 53.

Antennae testaceous, apes brown. Thorax bluish black. Abdomen white,
dorsal stripe black ; posterior legs brown, middle of the femora black.

Length 2 A 1. % . — Near to O. riridida. Face black, shining; front black, with
lines. Antennae dark testaceous, tips black. Thorax bluish black, with a thin
white pubescence; margin of the scutellum and spines yellow. Abdomen yel
lowish white; first, second and third segments with a dorsal stripe of black, en
larged at the two extremities ; stripe much more wider on the fourth and fifth
segments, but not reaching the sides ; venter white, a little brown at the tips of
the tibiae and the joints of the tarsi. Wings hyaline.

Merida, Yucatan.

Odoulomyia li mbipennis Macquart.

Odontomyia Hmbipennis Macq., Dipt. Exot. Suppl. ii, 30, 24.

Straticmys hmbipennis Walker, List, etc., v, 39.

“ The label in Macquart’s hand-writing in Mr. Bigot’s collection
bears America with a query. The query is omitted in the Dipt.
Exot. I doubt that this is a North American species” (Osten Sacken).

Odoiiloinyia alboinaculata Macquart.

Odontomyia albomacnlata Macquart, Dipt. Exot. i, 1, 189.

Ktratiomys alboinaculata Walker, List, etc., v, 40.

Length 41 1. 9 • — Thorax black, scutellum red. Abdomen dark blue, macu
lated with white. Legs black, first joint of the tarsi white. Face even, inclined,
tawnv, pubescence whitish ; front narrow, tawny, back of head tawny. Antennae
tawny, first joint brown, as well as the last division of the third. Thorax black,
with a line of whitish pubescence; spine of the scutellum yellow. Abdomen
blackish blue, each segment with a lateral whitish spot and pubescence; under¬
side of the body whitish pubescence. Legs black, knees tawny; halteres white.
Wings grayish, veins brown, with five posterior cells.

Port au Prince, San Domingo [Hayti], (Macquart).

Odontomyia vicina Macquart.

Odontomyia vicina Macquart, Dipt. Exot. i, 188.

Stratiomys vicina Walker, List, etc., v, 40.

Length 3 1. 9 — Black. Abdomen green, with a narrow black dorsal stripe,
the apex dilated. Resembles 0. yiridis ; the first two joints of the an ten life
brownish, testaceous, third imperfect : the black stripe of the abdomen narrow
on the first three segments, wide on the fourth.

Cuba. Collection of M. Serville (Macquart).

NORTH AMERICAN DTl’TERA. .

277

0<lontoinyi:i maculif rons Walker.

Odontomyia mac.ulifrons Walker, List, etc., iii, 536.

“Niger, capite viridi, nigro maculate, tkorace peetoreque flavo-marginaois, seu-
tello viridi dentibus duabus flavis armato, abdomine flavo, disc nigro, autennis
fulvis apice piceis, pedibus tiavis, femoribus nigro fasciatus, alis limpidis.”

“Head apple-green, full as broad as the chest, smooth, shining, adorned with
five pairs of black marks: first pair forming a short band on each side of the
eyelets; second pair forming more slender curved bands; third and fifth pairs
forming four dots : fourth pair forming two larger spots ; eyes aud eyelets piceous,
the former with a band across the middle ; mouth black, feelers piceous, longer
than the head ; first and second joints tawny, long ; first joint shining, third and
following joints short; chest black, clothed with tawny hairs, adorned on each
side with a yellow stripe, which is narrow in front; breast black, sides yellow;
scutellum apple-green, armed with two short, pale yellow teeth. Abdomen yel¬
low, nearly as broad as long, wider, but not longer than the chest ; yellow, clothed
with long, pale yellow hairs: disc black above, especially on the part. Legs yel¬
low, hips black, a black band on each thigh. Wings colorless : wing-ribs, veins
and poisers yellow. Length of the body 2 j lines, of the wings 4 lines” (Walker)

Honduras (Walker).

Odontomyia canadensis Walker.

Stratiomys canadensis Walk., List, etc., v, 310.

“Nigra. Abdomen viride, vitta dorsali nigra, basi dilatata, lateribus angulatis,
postice rotundata, apicem fere attingente ; pedes testacei ; alre limpid®, ad costam
subtestai ere, venis pallides; halteres testacei, apice pomacei.”

“ Nearly allied to S. paron male. — Black, proboscis and antennre black. Thorax
clothed with pale hairs ; scutellum black, with two black spines. Abdomen
green, with a black dorsal stripe, which extends nearly to the hind border; this
stripe occupies nearly the whole breadth of the first segment ; on the second it
decreases in breadth from the fore to the hind border; on the third and on the
fourth it has nearly parallel sides, but is broader on the fourth than on the third ;
on the fifth it is nearly semicircular. Legs testaceous. Wings limpid, with a
testaceous tinge along the. costa, veins white, testaceous towards the costa ; halteres
testaceous, with apple-green knobs. Length of the body 3 i lines, of the wings 7
lines” (Walker).

I should refer this species to O. virgo if it were not for “antennae
black” and the scutellum “armed with two black spines.”

TRANS. AM. ENT. SOC. XXII.

JULY, 1895.

278

.CHARLES W. JOHNSON.

EXPLANATION OF PLATE III

Figs.

1- 2. — Rtratiomyia barbata Loew, 'J, 9 •

3- 4.—

melastoma Loew, 9 •

“

5- 6. — “

lativentris Loew, % 9 •

7- 8.—

Bruneri n. sp. % 9 •

“

9.—

laticeps Loew, % .

“

10 —

senaria Loew, 9 •

“

11 12 —

badius Walker, ^ 9 •

“

13-15.—

maculosa Loew, ^99-

“

16.—

normula Loew, 9 •

“

17-18.—

norma Wied., % 9 •

“

19-20.—

unilimbata Loew, ^ 9 •

“

21 -22 —

Meigenii Wied., % 9 •

“

23-24 —

apicula Loew, 9 •

25-26— “

quarternaria Loew, % 9 •

1

GO

Oi

t-

Oi

discalis Loew, % 9 •

“

29-32. — Odontomyia

binotata Loew, ^ 'J, 9 9 •

“

33-34.—

cincta Olivier, 'J, 9 •

“

35.—.

arcuata Loew, 9 •

36-37.—

nigrirostris Loew, % 9 •

EXPI

jANATION OF PL A

Figs. 1- 2.—

Stratiomyia constans Loew, 9 •

“ 3.—

mutabilis Fabr., ^ .

“ 4- 5.—

Odontomyia hieroglyphica Olivier, 'J, 9

“ 6.—

“ similis n. sp. 9-

“ 7- 8.—

“ ■ arcuata Loew, % 9 •

“ 9 —

dorsalis Fabr., 9 •

“ 10.—

hydroleonoides n. sp. 9 ■

“ 11-12.—

“ pilimana Loew, 'J, 9 •

“ 13-14.—

“ pilosus Day, % 9 •

15-16.—

“ pubescens Day, % 9 •

“ 17.—

Aldrichi n. sp. % .

“ 18.—

viridis Bellardi, 'J, .

“ 19.—

trivittata Say, 9 •

“ 20.—

microstoma Loew, % .

“ 21-22. _

flavicornis Olivier, 'J, 9 •

“ 23-24.—

occipitalis n. sp. % 9 •

“ 25. _

nigerrima Loew, ? % .

“ 26-28.—

vertebrata Say, % % 9 •

“ 29-30.—

interrupta Olivier, 9 •

“ 31 35 —

virgo Wied., % % 9 9 9 •

Trans. Am. Ent. Soc. Vol. XXII.

PI. III.

i

35 :

I

32

Trans. Am. Ent. Soc. Vol. XXII.

PI. IV.

NORTH AMERICAN COLEOPTERA.

279

THE SPECIES OF IHNEITES OF AMERICA
NORTH OF MEXICO.

BY CHRIS. H. ROBERTS.

The similarity in general appearance of the species of this genus,
together with the apparent lack of definite characters for their sepa¬
ration, lias not made them favorites with collectors or students. I)r.
LeConte monographed the species of the United States, in 1868, in
the “ Proceedings of the Academy of Natural Sciences of Philadel¬
phia,” and described two new ones, serrulatus and c arolinus. In
1878, in the “ Proc. Amer. Philos. Society,” he described angiistus.
In the “Annals of the Entomological Society of France,” 1882 and
1883, Dr. H. Regimbart monographed the species of the world,
added one new species, analis, to our fauna and suppressed Carolina*
and angustus after examining Dr. LeConte’s types.

The examination and study of a large series of specimens from
all parts of the United has enabled me to recognize all the previously
accepted species, and to discover three undescribed. I am also con¬
vinced, contrary to Dr. Regimbart’s conclusions, that carolinus and
angustus are good species, and I hope by means of the table, descrip¬
tions and plates, to make all the species readily recognizable to the
student and general collector.

The species are all of fair size, some quite large; all are more or
less oval and convex. The upper surface is usually shining and
bronzed, and is finely reticulate in all except sublineatus, where it is
more nearly granulate. The shape of the apices of the elytra and
the structure of the anterior tibiae and femora are the more impor¬
tant characters used to separate the species, but color of the upper
and under surface, the distinctness of the striae and the depressions
of the elytra are also of use. The male genitalia afford excellent
characters, and the different forms are shown on the plate, but I have
not made use of them in the descriptions as the examination of them
requires a partial dissection of the specimens. There is a difference
in the depth of the thorax, as compared with its width, in some
species, but the character does not seem to be of much value. A
careful examination of the under surface of the abdomen has failed
to show any secondary sexual characters in either male or female,

TRANS. AM. ENT. SOC. XXII.

JULY, 1895.

280

CIIRIS. II. ROBERTS.

except iii the case of sublineatus, which species also shows the pecu¬
liar surface sculpture above mentioned. In the female of that spe¬
cies the penultimate abdominal segment is strongly sinuate, giving
it the appearance of being lobed at the middle, but the male shows
no corresponding character.

The femora of the males in all the species, except vittatus, hornii,
nigrior and assimilis, are furnished with a more or less distinct tooth,
and on the upper surface of the femora of all, male or female, will
be found a row of setigerous punctures varying in number and char¬
acter. A certain amount of discretion is necessary in counting these
punctures, as a puncture is occasionally misplaced or entirely lost.
When one is missing a corresponding blank space is found, and when
there is an extra one it is crowded in close to another, placed entirely
out of line or in the hollow of the leg near its base, thus breaking
the regularity of the punctuation. The number, taken together with
their character, is of value in determining the species.

The depressions in the elytra are situated, one at the exterior apical
angle, and the other at the suture near the apex. When the latter
is deep the elytra have the appearance of being elevated or humped
at that point. In the descriptions the characters of the male are
used unless special mention is made of the female, and as a rule the
female structure follows closely that of the male; the legs are, how¬
ever, more slender, and in those species which have the tibiae sub-
sinuate in shape the broadening is on the outer instead of the inner
side ; the femora usually have one more puncture.

Four types of anterior tibiae are represented : first, the truly sinu¬
ate, exemplified in vittatus and sublineatus ; second, the subsinuate —
cyli nd ncal at basal third, then rather suddenly broadened and con¬
tinuing nearly parallel to apex — emary hiatus, carolinus, productus,
serrulatus and analis; third, the wedge-shaped — rather flat and
gradually broadened from base to ap ex — hornii, nigrior and assimilis ;
fourth, the club-shaped, somewhat cylindrical at base, not flat, and
thence gradually broadened to apex — discolor and angustus.

The elytra have nine slightly impressed striae, which are sometimes
almost obliterated. The labrum is rounded in front and ciliated,
the scutellum is invisible, and the mesosternum is coarsely, but
sparsely punctured in front. In the males the anterior tarsi are
moderately dilated, and densely clothed beneath with papillae.

A proper mounting of the specimens is of importance. The an¬
terior legs should be spread out and depressed far enough to allow

NORTH AMERICAN COLEOPTERA.

281

of an examination of the upper surface of the femora. The abdo¬
men should be depressed, and care used to see that the elytra are in
a natural position ; otherwise the serration of the apices may escape
notice, and one may be deceived as to whether they are dehiscent at
suture or not.

In the measurements that portion of the abdomen extending be¬
yond the elytra is not included, and localities mentioned are those
from which I have seen examples.

I wish here to express my deep obligations to Dr. C. V. Riley,
through whom were placed in my hands, for examination and study,
the large collections of the U. S. National Museum ; to Dr. George
H. Horn, for advice and the loan of his material ; to Wm. Beuten-
mtiller, for a line series of serrulatus ; and especially to Prof. John
B. Smith, for advice and friendly criticism, and to whose facile pencil
the reader is indebted for the plates illustrating this paper.

Were it not for one, hornii, the species would divide very natu¬
rally into two groups : those with the sutural angles of the elytra
rounded, and those with the angles evident and usually produced.
In the first section would be placed vittatus, sublineatm, emarginatus
and carolinus, and in the second all the others. In hornii we have
a species with the male going into the first, and the female into the
second group. Being unable to devise a better arrangement an in¬
dependent group has been found for the odd species.

The species may be grouped and tabulated as follows :

Sutural angles of elytra rounded in both sexes . Group A.

Sutural angles of elytra rounded in , produced and strongly dehiscent in 9 •

Group B.

Sutural angles of elytra distinct, frequently produced, in both sexes. .Group C.

Group A.

Femora of % not toothed.

Size large; surface very shining; elytra with a brouze vitta . vittatus.

Femora of ^ toothed.

Size large ; opaque, color dark olive ; tooth prominent, oblique.

subliueatus.

Size medium to small; surface black, frequently bronzed.

Tooth strong, acute ; sutural angles broadly rounded, apices not serrate.

emarginatus.

Tooth weak ; sutural angles scarcely rounded, apices finely serrulate.

carolinus.

(36)

TRANS. AM. ENT. SOC. XXII.

AUGUST, 1895.

282

CHRIS. H. ROBERTS.

Group B.

Femora of % not toothed.

Size medium ; surface black, not polished, sometimes bronzed.

Anterior tibia’ gradually broadened from base to apex, tip oblique, exterior
angles obtuse . liornii.

Group C.

Under surface black, shining, usually bronzed.

Femora of g not toothed.

Size medium, form robust; apices strongly depressed, not dehiscent at suture.

Anterior tibia; regularly broadened from base to apex, exterior angle acute,
produced . nigrior.

Size medium, form more slender; apices not strongly depressed, dehiscent at
suture.

Anterior tibia* regularly broadened from base to apex, exterior angle rect¬
angular . assimili*.

Femora of % toothed.

Size small ; apices dehiscent at suture, sutural angles evident, produced.

Anterior tibiae. cylindrical at basal third, then rather suddenly broadened
and continuing nearly parallel to apex, exterior angle acute, produced.

product 11s.

Under surface brown or testaceous ; femora of % toothed.

Apices of elytra serrulate.

Size medium to small; surface very highly polished, not bronzed, strongly
narrowed in front; under surface chestnut-brown, serration distinct.

serrulatiis.

Size medium: surface not highly polished, bronzed, moderately narrowed in

front; under surface pitchy-brown, serration fine . analis.

Apices of elytra not serrulate.

Size moderately large ; broad, narrowed in front, surface metallic shining;

under surface and legs testaceous to straw color . discolor.

Size small ; narrow, very couvex, surface polished black ; under surface and
legs rufous . august us.

Group A.

J>. vittat us Aube. Plates v, vi, figs. 1, la and 16. — Size large, regularly oval,
feebly convex; surface black, very shining, obsoletely punctate, striae faint, more
evident at sides ; a submarginal bronze vitta extends across the thorax and nearly
to apex of the elytra; lateral margins of elytra not sinuate, depressions not deep,
sutural angles broadly rounded ; under surface dark brown or pitchy, middle and
posterior tibiae and tarsi paler; anterior tibiae sinuate, apex truncate, or very
slightly oblique, exterior apical angle rectangular; femora without tooth, punc¬
tures (six 'J, , seven 9 ) not deep or closely placed. Length 12-15.5 mm. ; breadth
8 10 mm.

Hub. — North, Middle and South Atlantic States, Indian Territory,
Mexico (one specimen U. S. Nat. Mus.).

Readily recognized on account of its large size, very shining ap¬
pearance and the bronze vitta.

NORTH AMERICAN COLEOPTERA.

283

I>. Niiblineatiis Chev. Pis. 5-6, figs. 2, 2 a and 26. — Size large, oval, rather
strongly convex ; surface opaque, finely granulate, color dark olive, punctures
scarcely visible, strite well defined ; lateral margins of elytra feebly sinuate, de¬
pressions scarcely evident in . slightly more so in 9 > apices truncate, of 9
slightly sinuate, sutural angles feebly rounded ; under surface black, middle and
posterior legs pitchy brown ; anterior tibia1 strongly sinuate, apex oblique, exte¬
rior apical angle obtuse ; femora of male with a sharp, somewhat oblique tooth,
setigerous punctures (9 Si It* 9) deep and rather closely placed. Length 14 15
mm. ; breadth 8-9 mm.

/Tub. — Arizona, southward to Nicaragua.

On account of its peculiar color and large size this species will be
readily recognized. As mentioned in the introduction, this species
has a peculiar secondary sexual character in the female. The pe¬
nultimate segment of the abdomen is quite strongly sinuate, giving
it a lobed appearance, and the ultimate segment has an evident im¬
pression at tip.

I>. emai'giuatus Say. Pis. 5, 6, figs. 3, 3 a and 36. — Size moderate, rather
broadly oval, moderately convex ; surface black, not very shining, somewhat
bronzed, punctures and stride faint; lateral margins of elytra in 'J, not, in 9
slightly sinuate at exterior apical angles, depressions not deep, sutural angles
broadly rounded; undersurface black, very shining and slightly bronzed ; mid¬
dle and posterior legs, tip of ultimate and sides of abdominal segments testaceous :
anterior tibige cylindrical at basal third, then rather suddenly broadened on inner
margin in , on outer margin in 9 > and continued nearly parallel to apex ; apex
truncate, exterior apical angle rectangular; femora with a distinct, sharp tooth,
punctures (7 ^ , 8 9) rather deep, not closely placed. Length 10-11 mm.;
breadth 6-7 mm.

Hub. — North and Middle Atlantic States ; Virginia.

The figure on the plate illustrates an irregular punctuation.

I>. <‘a rol i ii ns Lee. Pis. 5, 6, figs. 4, 4 a and 46. — Size small, rather narrowly
ovate, moderately convex : surface black, sometimes bronzed, not very shining,
punctures and strise faint ; lateral margins of elytra not sinuate in y , in 9 mod¬
erately sinuate, impressions scarcely evident, the flattening of the margins ex¬
tending nearly or quite to the suture, sutural angles feebly rounded, apices finely
serrulate; undersurface black, shining, somewhat bronzed, middle and posterior
tibiae and tarsi dark testaceous; femora brown ; anterior tibiae cylindrical at basal
third, then rather suddenly broadened on inner margin in % , on outer margin
in 9 - and continued nearly parallel to apex ; apex truncate, exterior apical angle
acute; femora with a small tooth, frequently scarcely more than an abrupt ter¬
mination of the ridge on underside, setigerous punctures (7 'J, , 8 9) 11 °t deep,
rather closely placed. Length 9-10 mm. ; breadth 5.5 6 mm.

Hub. — South Atlantic States; Louisiana, Texas.

I cannot agree with Dr. Regimbart and others that this species
and emarginatus are identical. While I cannot recognize the apices

TEANS. AM. ENT. SOC. XXII.

AUGUST, 1895. •

284

CHRIS. II. ROBERTS.

of the elytra, as reflexed, as described by Dr. LeConte, the flatten¬
ing of the margin continuing to the suture gives them that appear¬
ance to a certain degree.

In emarginatus the femoral tooth is distinct and strong; in caro-
linus weak, often feeble ; sutural angles in emarginatus rather
broadly rounded ; in carol inns feebly so ; apices of elytra in emar¬
ginatus smooth ; in Carolina s finely serrulate. This serration is very
fine, and to see it requires care, a proper position of the specimen,
and that it be clean. An examination of a hundred or more speci¬
mens found the character constant ; carolinus is smaller and less
broadly oval, and the male genitalia are quite unlike.

Group B.

I>. lioruii n. sp. Pis. 5, 6, figs. 5, 5 a and 56. — Size moderate, elongate oval,
not strongly convex ; surface black, not polished, somewhat shining or bronzed,
frequently opaque, striae and punctures feebly marked, more evident in opaque
specimens: lateral margins of elytra in £ not sinuate, in J strongly sinuate at
exterior apical angles, depressions evident, stronger in 9 > sutural angles in %
rounded, in 9 produced, and with the suture strongly dehiscent ; undersurface
dark brown, shining, slightly bronzed ; legs dark testaceous: anterior tibiae regu¬
larly widening from base to apex : apex oblique, exterior apical angle obtuse, but
not rounded; femora without tooth, punctures (6 %. 7 9) not deep or closely
placed. Length 10-11 mm.: breadth 5.5-6 mm.

Hah. — North and Middle Atlantic States; Texas. Described
from four males and four females.

This species has been mixed with a ssimilis, but the rounded su¬
tural angles of the elytra will readily separate the male. The female
is not so easily pleased, but the strongly dehiscent apices of the elytra
and obtuse angulation of the tibiae with care will determine it.

1 take pleasure in naming this species after Dr. G. H. Horn, as a
slight recognition of many favors and kindly interest.

Group C.

I>. nigrior n. sp. Pis. 5, 6, figs. 6, 6a and 66. — Size moderate, regularly
oval, rather convex ; surface black, shilling, slightly bronzed : striae and punctures
evident; lateral margins of elytra in % slightly sinuate at exterior apical angles,
sinuate at apex, sutural angles evident, produced ; in 9 lateral and apical mar¬
gins strongly sinuate, sutural angles strongly produced ; depressions deep, apices
strongly depressed, not dehiscent at suture ; under surface black, shining, middle
and posterior tibite and tarsi brownish yellow ; femora brown ; anterior tibia-
regularly widening from base to apex ; apex truncate, exterior apical angle acute,
evidently produced; femora without tooth, punctures (9 ^ , 10 9) deep and
closely placed. Length 10-12 mm.; breadth 6-7 min.

NORTH AMERICAN COLEOPTERA.

285

Hub. — North and Middle Atlantic States ; Virginia. Described
from four males and four females.

Resembles rather closely hornii and assimilis in its general ap¬
pearance, but is larger and proportionately broader than either. It
may be separated from the former by the produced exterior apical
angles of the anterior tibiae. It differs also in this respect from as¬
similis, and the apices of elytra are strongly depressed and not de¬
hiscent at suture as in that species.

1>. assimilis Aube. Pis. 5, 6, figs. 7, 7 dis., 7 a and 76. — Size moderate, ob¬
long oval, distinctly convex ; surface black, strongly bronzed, not deeply punc¬
tured ; strife usually feebly marked ; lateral margins of elytra in % not sinuate,
apices feebly sinuate, slightly dehiscent at suture and not strongly depressed,
sutural angles feebly produced ; in 9 the lateral margins of the elytra and apices
more strongly sinuate and dehiscent at suture, sutural angles produced ; under
surface black, more or less tinged with brown, very shining, middle and posterior
legs testaceous ; anterior tibiae regularly widening from base to apex ; apex trun¬
cate, exterior apical angle rectangular, scarcely or not at all produced : femora
without tooth, punctures (7 , 8 9 ) shallow and not closely placed. Length

10-11 mm. ; breadth 5.5-6 mm.

Hub. — North, Middle and South Atlantic States; New Mexico,
Colorado, Minnesota, Michigan and Dakota.

As remarked under those species, hornii and nigrior have been
mixed with assimilis; their more evident differences may be sum¬
marized as follows: Anterior tibice : in hornii with apex oblique,
exterior angle obtuse ; nigrior apex truncate, exterior angle acute
and evidently produced ; assimilis apex truncate, exterior angle rect¬
angular and scarcely or not at all produced. Sutural angles: in
hornii % rounded, 9 produced, and with the suture strongly dehis¬
cent ; in nigrior S and 9 produced, apices depressed and not de¬
hiscent at suture ; in assimilis $ and 9 produced, apices feebly
dehiscent at suture. Setigerous femoral punctures: in hornii few
(6 I) , 7 9 )> not deep or closely placed ; in nigrior numerous (9 % ,
10 9 ), deep and closely placed; in assimilis moderate (7 % , 8 9 ),
shallow and not closely placed. The male genitalia are entirely
unlike, as shown by the figures on the plate.

I), pi'odiictiis n. sp. Pis. 5, 6, figs. 8, 8« and 86. — Size small, ovate, not
very convex; surface shining, strife faint, punctures quite evident; 'J, lateral
margins of elytra not sinuate, apices slightly sinuate and dehiscent at suture,
depressions not strongly marked, sutural angles produced ; 9 lateral and apical
strongly and irregularly sinuate, more dehiscent at suture, depressions deeper
and sutural angles more sharply produced ; under surface black, strongly bronzed
and shining, middle and posterior tibiae and tarsi and last abdominal segment

TRANS. AM. ENT. SOC. XXII.

AUGUST, 1895.

286

CHRIS. H. ROBERTS.

rufous; anterior tibia* cylindrical at basal third, then rather suddenly broadened
on inner margin in £ , on outer in 9 • and continuing nearly parallel to apex ;
apex truncate, exterior angle acute, produced ; femora with a small, sharp tooth,
the punctures (6 ^ , 7 9) being rather large and deep. Length 9.5 — 10 mm.;
breadth 5.5-6 mm.

Hab. — Texas. Described from two males and two females.

Resembling closely aarolinus, but quite distinct on account of the
sutural angles of the elytra being evidently produced, and the dif¬
ferences in the male genitalia.

D. serrulatiis Lee. Pis. 5, 6, figs. 9, 9a and 95.— Size moderate to small.
Very convex, strongly narrowed in front ; surface polished black with purplish
reflection, shining, not bronzed, punctures and striae obliterated ; lateral margins
of elytra slightly sinuate at exterior apical angles, apices truncate, sutural angles
evident, depressions moderate, apices distinctly serrate ; under surface chestnut-
brown, shining; anterior tibiae cylindrical at basal third, then rather suddenly
broadened on inner margin in % , on outer in 9 » and continuing nearly parallel
to apex; apex truncate; exterior angle obtuse, rounded : femora with a distinct,
acute tooth, punctures (9 % , 10 9) moderately deep and closely placed. Length
9 12 mm. ; breadth 5-7 mm.

Hab. — All the specimens I have seen, about one hundred, are
from Florida.

A very distinct species and readily recognized. While the varia¬
tion in size is great, it keeps remarkably true to form.

a ual is Reg. Pis. 5, 6, figs. 10, 10a and 105. — Size moderate, broadly oval,
narrowed in front; surface shining, not strongly bronzed, stria* faint; ^ lateral
margins of the elytra slightly sinuate at exterior apical angle, apices feebly sinuate
and dehiscent at suture, sutural angles evident ; 9 margins more sinuate, apices
more dehiscent at suture and sutural angles somewhat produced; depressions not
deep, apices finely serrate : under surface dark brown, last segment and middle
and posterior femora rufous, tibise and tarsi testaceous ; anterior tibise cylindrical
at basal third, then rather suddenly broadened on inner margin in ^ , on outer
in 9 > and continuing nearly parallel to apex ; apex truncate, exterior apical angle
obtuse, rounded ; femora with a moderate tooth, setigerous punctures (8 % , 9 9 )
deep and closely placed. Length 11-11.5 mm. ; breadth 6-6.5 mm.

Hab. — Texas.

Dr. Regimbart compares this species with emargmatus and “ ameri-
canux” (assimilis ?), but to me it seems more closely related to serru¬
late. It is, however, not so strongly convex as that species, the
surface is bronzed, not polished black, the apices of elytra are sinuate
and dehiscent at suture, while this is not the case with serrulatus ;
the femoral tooth is weaker, the punctures not so numerous, and the
serration of the elytra is finer. Dr. Regimbart overlooked this ser¬
ration, and, while I have not seen his types, his description leaves no

NORTH AMERICAN COLEOPTERA.

287

doubt as to the determination of my specimens, of which I have
examined over twenty.

I>. discolor Aube. Pis. 5, 6. figs. 11, 11a and lift. — Size moderately large,
oblong oval, somewhat convex, narrowed in front; surface metallic shining, very
rarely black, punctures and stripe quite distinct; lateral margins of elytra at ex¬
terior apical angles and apices, sinuate; depressions very feeble, sutural angles
weakly produced ; under surface and legs testaceous to straw color : anterior tibipe
cylindrical at basal portion and gradually broadened to apex ; apex slightly ob¬
lique, exterior angle rectangular, produced : femora with a fairly strong trian¬
gular tooth, setigerous punctures (6 %,7 9 ) not deep or closely placed. Length
10.5-13 mm. ; breadth 6-7 mm.

I lab. — North and Middle Atlantic States ; North and South
Carolina, Mexico.

It is rather remarkable that the femoral tooth of the male in this
species has been so long overlooked. This is probably due to the
generally light color of the under surface and legs, and to the habit
of the species of Dineutes of folding the legs close to the body.
Unless the legs are extended the tooth is concealed.

D. ;i li g list ns Lee. Pis. 5, 6, figs. 12, 12a and 126. — Size small, narrowly
ovate, strongly convex, narrowed in front; surface black polished, stripe usually
entirely obliterated, at most very faint, punctures evident; lateral margins not
sinuate, depressions at suture wanting, at exterior apical angles distinct; sutural
angles somewhat produced ; entire under surface and legs rufous: anterior tibipe
cylindrical at basal portion and gradually broadened to apex ; apex strongly ob¬
lique, exterior apical angles acute and sharply produced ; femora with a minute
tooth, setigerous punctures (4 ^ , 5 9) shallow and well separated. Length 9-
10.5 mm. ; breadth 4. 5-5.5 mm.

Hub. — Virginia, Florida.

This species is closely related to discolor , but I am convinced it is
a distinct species. It is smaller, the largest specimens I have seen
being no larger than the smallest discolor, is narrowly ovate, not so
abruptly narrowed in front and more strongly convex. In angustus
the surface is polished black, in discolor metallic shining ; in angustus
the striae are usually obliterated, never more than very faint ; in
discolor they are distinct ; in angustus the lateral margins at exterior
apical angles are not sinuate, while in discolor they are evidently,
though not strongly so. There is one less puncture on the femora
in angustus, and they are more widely separated. While color is
not usually a very reliable character, it is sometimes of importance,
and in discolor I have never seen the entire under surface and legs
of a rufous color, which is constant in angustus. The nude genitalia
are very close, being slightly more slender in angustus.

TEANS. AM. ENT. SOC. XXII.

AUGUST. 1895.

288

CHRIS. II. ROBERTS.

The shape of the labrum in anc/ustm, which is more prominent
than in any other species in the genus, reminds one strongly of
Gyretes.

EXPLANATION OF PLATES V & VI.

The numbers refer to the same species throughout; a, refers to the apices of
elytra ; b, to the genitalia of 'J, .

Fig.

1. — Di nettles vittat us.

2. — “ sublineatus.

emarginatm.

carolinus.

hornii.

nigrior.

assimilis.

7 bis. “ “ a little distorted by pressure.

8. — “ productus.

9. — “ serrulatus.

lO.-

ll—

analis.

discolor.

12. — “ angustus.

Trans. Am. Ent. Soc. Vol. XXII.

PI. V.

NORTH AMERICAN HYMENOPTERA.

289

DESCRIPTIONS OF NEW HYMENOPTERA.

RY T. ]>. A. COCKERELL.

(With Notes by W. J. Fox.)

Pilot opsis pirns sp. nov. ^ 7-10 mm. long, anterior wing 6-7 mm. — Dark
honey color; antennae fulvous. Legs variable, entirely pale ochreous, or dirty
straw color, or the four hindmost femora largely blackened. Wings smoky hya¬
line, with a large fuscous cloud beyond the marginal cell ; nervures partly brown and
partly colorless, stigma dark brown ; sculpture ordinary ; pleura and dorsum of
prothorax closely and deeply punctured ; mesothorax strongly, lint not so closely
punctured ; metathorax reticulate. Abdomen with first segment finely reticulate,
second with numerous broadened shallow punctures; the remaining segments
smooth and shiny, becoming punctured below on their distal margins; first joint
of flagellum a little longer than second. Head round seen from in front, with
the eyes large and black ; metathorax rapidly descending, but rounded. Abdo¬
men elongate; the first segment with its anterior half very narrow, suddenly
widening just before its middle to the bulbous posterior portion, which is rapidly
narrowed at its junction with the second segment; genitalia projecting in the
form of a single short spine, which is slightly curved upwards. Very slightly more
than half of the stigma enclosed in marginal cell : marginal cell a little shorter than
stigma, abruptly truncate before and, behind; two submarginals only; the first long
and narrow, longer than stigma ; the second beneath the first, moderately small,
triangular, its inferior distal angle a little more than a right angle ; the single
recurrent nervure entering second submarginal before its middle.

Hab. — Santa Fe, New Mexico (Ckll. 1665, July 25, 1894, and
Ckll., 1775, beginning of August, 1894) ; Las Cruces, New Mexico
(E. O. Wooton, September, 1894); San Augustine, New Mexico
(Ckll. 2081, Aug. 28, 1894, and three others taken by Prof. Townsend
at same place and time) ; all taken at light. The San Augustine
specimens show the whole range of the variation in the color of the
legs.

The species allied to P. picus are in a considerable state of con¬
fusion, and it becomes necessary to enter into some detail in order
to make the exact position of the new form clear.

The supposed mellipes which (“ Ent. News,” 1894, p. 200) I
compared with P. territus, had been so named for me by Mr. Fox,
but it turned out that this was a mistake. Thereupon, after com¬
parison with the coll. Am. Ent. Soc. it was labeled albipes ; but
when I wrote Mr. Fox that I could not separate this so-called albipes
from nubecula, he examined the collection and discovered that the

TRANS. AM. ENT. SOC. XXII.

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AUGUST, 1895.

T. D. A. COCKERELL.

290

types of albipes were missing, and that the specimens (from Colorado)
standing in their place were in fact nubecula. The original types
of albipes were from Nevada.

In the meanwhile Mr. Fox kindly sent a specimen of what he
considered true mellipes, from Arizona. This proved to be the same
as what I had labeled belfragei, an example having been taken by
Prof. Townsend at San Augustine, New Mexico, and another by
Miss J. Casad in the Mesilla Valley. Mr. Fox, being informed of
this, wrote that mellipes Blake, and belfragei Blake, were really the
same species; belfragei, having more than ten years priority, is the
correct name.

But we have, from San Augustine (Prof. Townsend) and the Me¬
silla Valley (Prof. Wooton), also another form, which flies with bel¬
fragei, and very exactly resembles it, except that it has a black
head. This, evidently, is P. melaniceps Blake, but I judge it to be

only a variety of belfragei, which Mr. Fox admits is perhaps the

#

case.

At Santa Fe I caught a Photopsis and sent it to Mr. Fox ; word
came back that it was P. no/comis, though small. I regret that I
did not study it, as I find among my Santa Fe Photopsis no no/comis,
but only pieus. However, that picas is distinct from no/comis cannot
be doubted.

Mr. Fox writes : “ the color of nolcornis varies ; but the species is
easily distinguished from those mentioned above fnubeeula, etc.] by
the shape of first abdominal segment, which is shorter and gradually
broadened from the base ; in the others it is suddenly dilated at about
the middle and is much longer. The width of this segment at apex
is variable in no/comis

P. pieus, on the other hand, has the first segment shaped like that
of nubecula. If pieus is held sideways, the abdomen, with the first
segment, suggest the body and head of a woodpecker, whence the
specific name. So also in nubecula, but the segment in pieus aver¬
ages slenderer.

The other type is illustrated by P. clara Bl., a Texas specimen,
of which I have from Mr. Fox. In this the abdomen, with first
segment, might be compared to the body and head of a vulture, in
the posture with the head depressed upon the shoulders.

Mr. Fox points out the little brushes of hair on the apices of ven¬
tral segments 4 and 5 in nubecula. These are entirely wanting in
pieus, which can also be distinguished from nubecula by its venation.

NORTH AMERICAN HYMENOPTERA.

291

A question remains as to a Ibipes. Mr. Fox suggests that it mav
perhaps be the same as nubecula, though Cresson does not mention
the abdominal brushes; or it may, he adds, be the new form picus.

It seems to me that in all probability albipes is a good species, and
I am sure it cannot be picus.

The picus-nubecula-belfragei group is recognized by the large fus¬
cous cloud, varying in intensity beyond the marginal cell. But
albipes is said to have the marginal cell itself with a fuscous cloud,
and nothing is said of any beyond. To further distinguish albipes
from picus are the three submarginal cells, picus having never more
than two.

The following table will serve to separate the species allied to
picus, which are found in the Mesilla Valley:

A. — Stigma inconspicuous, very pale yellowish ; two submarginal cells and two

recurrent nervures.

1. Head concolorous with body . P. belfrag-ei Blake.

2. Head black . P. belfrag-ei var. melaniceps (Blake).

B. — Stigma brown, conspicuous.

1. Three submarginal cells and two recurrent nervures- -P. nubecula Cress.

2. Two submarginal cells and only one recurrent nervure. . . - P. picus Ckll.

A word may be added to the generic name employed, Mr. Fox
having proposed to merge Photopsis in Sp luerop hthalma. To me,
genera are mainly a matter of convenience; and as Sp l uer op hthalma
is already inconveniently large, it seems suitable to distinguish from
it such a series as Photopsis, which is easily recognized by its peculiar
facies, and, moreover, differs from Spha&rop hthalma in being (like
Brachycistis) strictly nocturnal. It may be that some supposed spe¬
cies of Sphcerop hthalma are really females of Photopsis. Thus I
found a single specimen at Las Cruces, New Mexico, which Mr. Fox
tells me is Sphcerop hthalma marpesia Bl., though small. To me it
appears to be the female of Photopsis concolor, which is common in
the same vicinity. But, as Mr. Fox observes, there is no way of
proving this at present, and S. marpesia must be held distinct.

Brachycistis perpunctatus n. sp. £ .-Nearly 6 mm. long, perfectly
black, except the dark brown antennae and tarsi, the ferruginous mandibles, and
the lateral margins of the dorsal abdominal segments shining ferruginous in cer¬
tain lights; the tegulae are shining black; the large stigma is black, the veins
dark brown, the wings quite clear. Antennae long, first and second joints of
flagellum practically equal, the second perhaps a little the longer. Head, thorax
and abdomen shining, with sparse whitish hairs, most perceptible, on the abdomen :
the whole body surface is rather sparsely, but very strongly punctate, the punc¬
tures on the mesothorax being very large ; the first abdominal segment is large,

TKANS. AM. ENT. SOC. XXII.

AUGUST, 1895.

292

T. D. A. COCKERELL.

high,' with its suture with the second constricted ; viewed from the side the shape
of the first segment may be compared to that of the head of a young chicken ;
the stigma is, if anything, a little nearer to the base than to the apex of the
wing; the marginal cell is excessively narrow and short, and does not. reach the
costal margin ; there are only two submarginals, the first long, the second small
and triangular, but still larger than the marginal; it receives the recurrent ner-
vnre much before its middle; the intermediate tibiae are spinose at tip, but there
is only one spur, properly speaking: the abdomen is terminated by a single fer¬
ruginous spine, curving upwards; the eyes are not precisely round, but suboval

Hub. — “ Found drowned” in the college horse-trough, Las Cruces,
New Mexico, 1895, one specimen. This is clearly a Brachyeistis,
though there is no trace of a third submarginal cell. It is by this
character and the black tegulse, that it will be known from B. atratus
(Blake), which it evidently much resembles.

This year, at Las Cruces, B. elegantulus has been taken in May,
and B. glabrellus in April and June.

Oxybelus sparidcus n. sp. — Male about 5.5 mm. long, strongly and
densely punctured ; black with yellow markings ; silvery pubescence on cheeks
and face; protliorax carinate; scutellum with an obscure longitudinal keel;
squama large, rounded, subovate, not pointed as in emarginatus, but having a
small and easily-overlooked lateral spine; spine broad, deeply emarginate, the
emargination forming a little less than a right angle ; pleurae with minute, op¬
pressed, silvery hairs: first segment of abdomen deeply longitudinally sulcate ;
apex of abdomen roundly emarginate. Antennae dark brown, paler beneath ;
mandibles yellow with black tips ; superior border of prothorax very pale yellow ;
tegnlae and spine rufous; squamae and an oblique spot anterior to each, yellow;
abdominal bands yellow, more or less interrupted in the middle; last segment
rufous; femora black, anterior and middle femora with silvery pubescence and
their distal ends yellow: tibiae yellow, posterior tibiae anteriorly black; tarsi
yellow. Wings hyaline, veins piceous.

Hab. — Las Cruces, New Mexico (Ckll. 1966, Aug. 24, 1894).

The specific name is derived from the resemblance which the spine
and squamae present to the tail with hindmost fins of a fish of the
genus Diplodus, family Sparidae.

One has to consider the possibility of this being a variety of the
9 of 0. emarginatus. I have a S of emarginatus, kindly identified
by Mr. Fox, which I took in Las Cruces (Ckll. 2436), and it differs
in its entirely black prothorax, in the absence of the spots before the
squamae, in the shape of the squamae and the spine, etc. It would
appear from Robertson’s description (Tr. Am. Ent. Soc. xvi, 84) that
the spots before the squamae are usual in 9 emarginatus. Robertson
says, also, sides of prothorax yellow.

[Note. — 0. sparkleus is evidently distinct from 0. emarginatus — the spine is
differently shaped and the body more coarsely punctured. — W. J. F.]

NORTH AMERICAN HYMENOPTERA.

293

Oxybelus SilbcornutuS n. sp.— Female about 8 mm. Ions, strongly
punctured, but not so closely on abdomen as in sparkleus. Black, with yellowish
white markings; silvery pubescence on face and pleura; vertex with a small
tubercle, looking something like a fourth ocellus; prothorax carinate; scute! urn
not carinate, or very feebly and almost invisibly so ; squamae joined m the middle
line, each ending apically in a strong curved tooth ; spine small, rather broader
at end than at base, abruptly truncate ; median sulcus of first abdominal segment
almost entirely obsolete, or at least very shallow ; tip of abdomen truncate, very
feebly subemarginate. Antenme black, slightly brownish towards tips ; posterior
lateral tubercles ‘of pTothorax whitish; teguhe testaceous; squama and spine
whitish. Abdomen with the bands yellowish white, interrupted in the middle :
femora black, posterior borders of anterior and middle ones mostly white; tibiae
mostly black on one side, the other side of anterior tibiae rufous, of middle and
posterior, white; anterior tarsi rufous; posterior and middle white, the terminal
joints darkened. Wings hyaline, veins piceous.

Hob.- Las Cruces, New Mex., Aug. 11, 1894 (C. H. T. Townsend).
This seems very near to 0. cornutus Rob., and might be a form of
the 9 of that species (Robertson only describes the % ). In mb-
cornutus the ocelli are normally placed, and the spine is truncate, not
rounded. The mandibles of subcornutus are rufous in middle as in

cornutus.

Mr. Fox recognized cornutus in a Las Cruces specimen formerly
sent him, and this circumstance favors the idea of subcornutus being
a form of the same.

[Note — 0. subcornutus differs from the 9 of cornutus by the sparser punctua¬
tion of dorsulum and abdomen, particularly that of the second ventral segment :
in cornutus it is covered with coarse, rather close punctures, while in subcornutus
it is very sparsely punctured. The form of the abdominal markings is different
also. — W. ,T. F.]

Apliilauthops taui-ulus sp. nov. %. Length about 11 mm.: of ante¬
rior wing about 8 mm.— Black, with the markings bright lemon-yellow. Head
broad and thick ; seen from in front broader than high ; eyes elongate-oval, par¬
allel. entire, olive-green, further apart from each other than the greatest length
of either; ocelli about as far from eyes as the third and fourth joints of antennae
hind ocelli a little nearer to each other than the length of the third antennal
joint. Head pitch-black, strongly punctured on vertex, but with a smooth,
shining spot, about as big as an ocellus, some distance behind the ocelli ; cheeks
and face covered with appressed, shining, silvery hairs; overlapping the base ot
the mandibles, on each side, it a triangular tuft of reddish hairs, and immediately
above this tuft is an obliquely oval, pale yellow spot, rather obscured by the sil¬
very hairs: mandibles reddish at tips, and with a small yellowish white spot ex¬
ternally at the base Antennae about as long as the bead is high, black, with t le
end of the scape broadly pale yellow; fourth joint about half as long as third.
Thorax black, with the collar, tubercles, tegulfe, transverse band on scutellum
and small mark on each side, and transverse band on post-scutellum, lemon-yellow ;
metathorax truncate; prothorax in front shining, sparsely punctured ; mesothorax

TRANS. AM. ENT. SOC. XXII.

AUGUST. 1895.

294

T. D. A. COCKERELL.

strongly and thickly punctured ; scutellum and post-seutellum mostly smooth ;
metathorax rough ; pleurae and sides of metathorax with silvery hairs. Thorax
not so broad as head, and not very much greater in bulk. Abdomen hardly as
long as head and thorax, shining, but well punctured, suture between first and
second segments fairly eonstricted ; color black, with broad lemon-yellow bands
on segments 1-5, that on 1 broadly interrupted in the middle, that on 2 narrowly
interrupted, the others continuous, those on 3 and 4 somewhat narrowed in the
middle ; venter with three interrupted bands. Coxae black, with their tips more
or less yellow; femora black, with their distal tips yellow; tibiae yellow in front
and rufous behind on fore legs, middle tibiae yellow without and lemon within,
hind tibiae yellow without and black within, but wholly yellow at their proximal,
and wholly black at their distal ends ; tarsi of anterior legs rufous, the others
piceous. Wings smoky hyaline, nervures piceous, stigma brown ; third submar¬
ginal rapidly narrowing to marginal, a deep sinus between them ; marginal about
as long as first submarginal, narrowly obliquely truncate, with a small stump of
a nervure at its tip; first submarginal somewhat longer than second and third
combined ; second small, nearly half narrowed the marginal, receiving the first
recurrent nervure a little beyond its middle ; third receiving the second recurrent
nervure much before its middle.

Hub. — Las Cruces, New Mexico, June 8, 1894 (Ckll., 872).

The broad head and high-set antennae have somewhat the aspect
of a bull’s or buffalo’s head, whence the specific name.

The United States species of Aphilanthops may be separated thus :

A. — Face with three broad, yellow stripes . frig-idus Smith.

B. — Face without stripes.

1. Legs red ; clypeus margined with yellow . quadrinotatus Ashm.

2. Legs black and yellow.

a. Clypeus yellow . laticinctus Cresson.

b. Clypeus black . taurulus Ckll.

Cameron has described two species, 1. marginipennis and A.punc-
tifrons Cam., from Mexico, but they both appear to me to belong to
Eucerceris ; the first mentioned being allied to E. canaliculatus Say,
though evidently distinct.

Bfysson solani n. sp. 9 .—Length about 6 mm., of anterior wing 4f mm.
Head and thorax black ; legs and abdomen except tip, rufous. Head seen from
above about twice as broad as long, about as broad as thorax ; seen from in front
transversely oval. Black, strongly rugose punctate, sparsely clothed with op¬
pressed white hairs, which, becoming denser, form a conspicuous silvery band on
the face bordering each eye, extending to the insertion of the antennae ; clypeus
black, with white hairs ; mandibles rufous, with blackish tips. Antennae very
dark brown, first joint of flagellum longer than second. Thorax black, very
strongly rugoso-punctate ; anterior portion of prothorax, tegube and metathorax
rufous, but the last very dark ; mesothorax with a faintly indicated median
groove; metathorax with a sharp spine on each side. Legs rufous, tarsi darker ;
fourth joint of hind tarsus conspicuously the shortest; spurs at apex of hind
tibia black, unequal, the one on the inner side being the longer ; hind tibia with

NORTH AMERICAN HYMENOPTERA.

295

five short, stool spines on its outer edge, of these one is apical arrrt tire mtervsl
between the apical and the one before it is conspicuously gi eater than that be
tween any other two. Wings smoky, iridescent : marginal cell subtruncate, mo le
dusky than the rest of the wing; two submarginals only, the normal second s
marginal being wanting instead of the third; second submarginal d^stinc«y
truncate, forming by its junction with the marginal a short-stemmed Y the a
of which are about equal. Abdomen punctate, each segment, except the last, with
a^ silvery band along its inferior margin above and below; first two segments
rufous, next three rufous with dorsum blackish, last mostly black.

f[ab. — Las Cruces, New Mexico, July 13, 1893, on Solanum

4

elceagnifolium. ,

Mr Fox, who first recognized this species as new, observes that it

is near 0. bellus Cr„ but differs in its finer punctuation of abdomen,
and by lacking the yellowish markings on thorax and abdomen It
may be added that its peculiar venation distinguishes it at once from
any known North American species.

[Vote. -It is doubtful in my mind whether the absence of the second submar¬
ginal cell is more than an anomalous character. bicolor, of witch aho but

a' single specimen is known, possesses but two submarginals, hut m that speetes
is the third, not the second, cell that is wanting. A larger ser.es ,s uecessaty to
demonstrate the constancy and value of these supposed, at least a, the pres .
time characters. N. sol.n.i is remarkable for its very strongly serrated h nd
tibise, a character existing in if. <«««« and /...wipes, and which .s not. present in
the species more closely allied to solani. . J. F.]

^ Prosopis subtil is Fox in litt. n. sp.- ? about 6 mm. long black, with
yellow marks on face, protlmrax and legs. Head not very broad ; thorax nearly
twice as long as high, metathorax subtruncate, but with rounded outlines. Head
and thorax rather dull, abdomen shiny ; punctuation of vertex and dorsulum fine-
dose and uniform, giving a somewhat granular appearance under a lens of low
power • metathorax more rugulose, but not conspicuously so, its middle portion
very finely transversely striate; punctuation of abdomen ^nute, shaRow and
inconspicuous; sides of face, to a short distance above the insertion of the an
ten me primrose yellow; this yellow commences narrowly at lowei maigm .
eye and following the edge of the clypeus gradually widens, reaching its greatest
width a short distance below the antenna?, after which it more rapidly nano ws
a^ain to^the^ eye-margin, just touching the outer edge of the sockets of the an-
tonne ■ at its upper termination it does not actually reach the eye-margin being
SZtVd therefrom by a very narrow and abort descend, ng tongue of black
the rest of the face is black, except the lower margin of clypeus, which is bioa y
rufous with centrally an obscure yellowish spot, whence proceeds upward a
suffused rufous tongue ; the rufous of the clypeus therefore resembling in outline
^trefoil leaf or perhapL rather an inverted T ; ends of mandibles shining rufous;
flagellum more or less testaceous below, blackish above ; lnrnl nmrgm ol pic j -
rax narrowly yellow, the yellow interrupted in the middle, tubercles yellow
te^tS with a yellow spot on anterior, and a subrufous spot on posterior half.
Femora black with the extreme tips reddish ydlow : anterior Hibia? » >
front, black behind; middle tibia? with the base rather broadly, and the apex

AUGUST. 1895.

TRANS. AM. ENT. SOC. XXII.

T. D. A. COCKERELL.

296

narrowly reddish yellow; posterior tibiae with more than the basal (proximal)
third pale yellow: tarsi yellowish, with a reddish tinge, darkened toward the
tips. Wings hyaline, with a slightly dusky tinge; second submarginal very little
narrowed toward marginal, rather more than half as long as first submarginal.

Hub. — Las Ciuces, New Mexico, on Solidcigo, by the acequia,
close to Schaublin’s mill, Aug. 24, 1894 (Ckll., 1997), also two other
specimens taken on the same day (Ckll., 1971, 1956). The locality
of subtilis is about two and three-fourths miles from that of P. bipes.

Mr. Fox observes that subtilis “is evidently new, differing in its
subtile sculpture, color of antennae, and spot at apex of clypeus.”

This species and bipes were sent to Mr. Fox with a query as to
their identity with P. limbifrons, but he informs me that they are
not that species, and points out that they are certainly also distinct
from one another.

Although they present considerable superficial resemblance, careful
examination reveals numerous points of difference which cannot be
attributed to variation. The following table will assist in their
separation :

P. bipes. P. subtilis.

Size larger, form stouter.

Punctuation of vertex and mesothorax
strong and deep.

Metathorax more rugose.

Yellow marks on face resembling hu¬
man feet.

Clypeus entirely black.

Smaller, more slender.

Punctuation shallow, and not nearly so
noticeable.

Metathorax less rugose.

Marks on face broadly triangular, not
resembling feet.

Clypeus partly rufous.

Pertlita numerata n. sp. 9- — Length about 5.5 mm.; head and thorax
brassy green, abdomen banded pale yellow and black. Head broader than long,
inner orbits parallel, clypeus and lower part of sides of face with sparse punc¬
tures. vertex finely rugulose ; pubescence of head, as also thorax, scattered white ;
mandibles pale yellowish, rufous at tips; labrum prominent, black; clypeus
shaped something like a cocked hat, shiny, dull white, with very conspicuous
black marks on its disc, i. e., a pair of broad vertical bars, a little converging
above, and not reaching the margin above or below, and a spot without each bar,
below the level of its middle, thus *11* ; small quadrangular patch between
upper edge of clypeus and the antenna;, and a more or less triangular patch on
each side between clypeus and lower front edge of orbit dull pinkish ; the latter
pinkish patch extends along orbit about as far as the level of the insertion of the
antennae, but along clypeus only about as far as the black spot; ridge between
antennae distinct. Antennae above blackish, below yellow, the last joint more or
less truncate ; collar, tubercles, and a band on upper edge of prothorax broadly
interrupted in the middle yellowish white; mesothorax shining, rugulose, very
sparsely punctured, median groove distinct; scutellum rather more closely punc¬
tured ; metathorax bluish-green or bluish, contrasting with the brassy green
mesothorax, scutellum and post-scutellum ; upper part of metathorax shiny.

NORTH AMERICAN HYMEN OPTER A .

297

appearing microscopically tessellated. Femora black, with pale yellow distal
ends; anterior and middle tibiae pale yellow with a black patch behind ; hind
tibiae much longer, with long hairs, and almost all black ; anterior and middle
tarsi pale yellow, hind tarsi black ; tegulse very pale yellow. Wings fairly ample,
hyaline, nervures and stigma piceous, almost hlack, nervures all very distinct;
stigma not at all pale in the middle; marginal cell short, not longer than stigma ;
second submarginal greatly narrowed above, practically triangular. Abdomen
with the first dorsal segment black, with a small, transverse, yellow band, broken
centrally and not reaching the sides on the disc; second, third, fourth and fifth
segments with their their distal half (or more) hlack, and the proximal half pale
yellow, the hands not united in the middle line, nor conspicuously indented .
venter dirty yellow, with a pair of dark oval spots on each segment.

Hub. — Las Cruces, New Mex., May 2, 1895, on Sa/ix (Ckll., 2898).

The shape of the second submarginal cell is like that of P. arcuata
Fox, but P. numerate is totally distinct by its face markings from
any other species that I know of. The number 11 on the clypeus
will at once distinguish it.

DESCRIPTIONS OF NEW II YMENOPTERA.

BY T. I). A. COCKERELL AND J. E. CASAD.

(With Notes by Win. J. Fox.)

Spliieroplitlialma wickhami n. sp. 9 • — ■ About 10 mm. long. Head
large, a little broader than thorax, quadrate seen from above, subcircular seen
from in front ; color orange-brown ; face and crown strongly punctured, covered
with appressed shiny orange-red hairs, with blackish, erect hairs interspersed,
the latter longest above the eyes ; clypeus with long, pale yellowish hairs; man¬
dibles shiny rufous with hlack tips. Antenme brown, blackish towards tips, first
joint of flagellum a little longer than second. Thorax orange-brown, punctate,
becoming strongly reticulate on metathorax ; strongly constricted at sides : mar¬
gin above the smooth and shiny lateral excavations dentate; pubescence similar
to that of head, but mot so dense on pro- and mesothorax, but anterior part of
prothorax and greater part of metathorax bare : coxae and femora orange-red,
tips of femora blackish ; tibiae and tarsi blackish, more or less covered with pale
yellowish shiny hairs; tarsal spines rufous, tibial spurs whitish, minutely ciliate.
Abdomen pyriform, first segment broad and sessile, orange-red basally and nearly
destitute of hairs, but distal half dorsally covered by dense, appressed, shiny, pale
golden hairs; second segment black, finely punctate, with a slight median golden
streak on its anterior third ; a large squarish, pale golden spot on each side, and a
rather broad, median, pale. golden fringe on the posterior margin ; the last-men¬
tioned fringe occupies about the middle third of the margin of the dorsal portion
of the segment, the remaining part of the margin being black, except a small
golden patch on the extreme lateral portion ; the large pale spots are further from
each other than the diameter of either: remaining segments black, heavily
fringed with pale golden hairs, except the last, which has the hairs orange-red ;
ventral surface of abdomen with pale hairs ; that of second segment strongly
punctate and rufous.

Hub. — Houston, Texas (H. F. Wickham) ; one specimen.

This species is allied to S. quadriguttata Sav, which it resembles.

(38)

TRANS. AM. ENT. SOC. XXII.

AUGUST, 189.>.

T. D. A. COCKERELL AND J. E. CASAD.

298

It i.s, however, smaller, and at once distinguished from Say’s species
by the broader head, proportionately narrower thorax, and broader
first segment of abdomen. There are two, instead of four, pale spots
on the second segment, and although tins is the case also with a va¬
riety of quad rig attata, the spots in wiclchami are placed much further
apart than the corresponding (viz. posterior) spots in that species.
The metathorax is also more rounded posteriorly in wickhami than
in quadriguttata. The quadriguttata used for comparison is from
Lincoln, Neb. (Shimek), sent by Mr. Wickham.

Npliivi'oplitlmlma «*ca*vololla n. sp. J. — About 5 mm. long. Head
very large, quadrate, wider than thorax, ferruginous, clothed above with appressed
shining pale golden hairs, with some erect hairs interspersed. Ante mite ferru¬
ginous, with the tips becoming fuscous ; tips of mandibles black. Thorax small,
scarcely longer than the transverse" diameter of the head, ferruginous, rugose,
with scattered, erect, pale hairs ; sides excavate, the excavation smooth and shiny ;
metathorax obliquely truncate, the hairs on it longer than other parts of thorax.
Legs ferruginous, sparsely hairy. Abdomen pyriform, ferruginous, with sparse,
shining, whitish pubescence, both erect and appressed ; first segment gradually
widening, broadly sessile with second ; second segment with its posterior (caudad)
half blackish, the blackish coloration extending forward in a suffused manner
on mid-dorsum, but interrupted on each side by a large, whitish patch or spot
situated about the middle of the segment; these spots owe their whiteness to
appressed shiny white hairs, situated on a pale ferruginous ground, which is
easily seen between them ; last segment subfuscous.

Hub. — Las Cruces, New Mexico, May, 1894 (Ckll., 718).

Judging from the description, this may be the western represen¬
tative of the eastern S. sccevola Blake, but, as will be seen on com¬
paring the descriptions, it is smaller and differs in color. In its type
of coloration it stands somewhat between ferrugata and quadriguttata,
though very different from either.

[Note. — Scsevolella is not related to scsevola, as it approaches fj..minutissima and
canadensis, species of a widely differing group. It is most closely related to
minutissiina, being somewhat larger, the hind angles of head not so sharp and the
metathorax is not denticulated. — W. J. F.J

Sphseroplitlialma riifostifTiixiS* n. sp. J.— About 12 mm. long. Head
rounded, reddish brown, becoming blackish on cheeks and occiput, covered with
dense, coarse, appressed golden hairs, with a few erect black hairs interspersed;
scape of antennae with golden hairs, flagellum black; mandibles long, blackish
with brown bases, with the denticle about twice as far from the tip as in wickhami ;
eyes large, more precisely circular than in wickhami. Thorax about as broad as
head, pyriform seen from above, quadrate seen from the side, reddish brown,
rngoso-punctate, reticulate on metathorax ; sides little constricted ; pubescence
of dorsum of thorax taking the form of three broad transverse bands, the first
black, the second golden, the third (more sparse) black; all these colors being
modified somewhat by the rufous dermis showing between the hairs. The ante¬
rior edge of the golden band is practically straight, whereas its posterior edge is
convex. Legs rufous, with sparse, long, pale yellowish hairs; coxae, ends of
femora and tibiae, and tibial spines black, or nearly so ; tibial spurs finely serrate.

NORTH AMERICAN HYMENOPTERA.

299

Abdomen elongate-pyriform, strongly rugose punctate, rufous marked with black
and yellowish; first segment moderately broad, the suture between it and the
second constricted, so that the angle between the first and second segments at the
side is about a right angle, not a very obtuse angle as in ferrugata In general
shape the first segment might be compared with that of quadrig attain, having the
comparative narrowness which distinguishes that from wickhami, but in quadri-
guttata the sides of the segment are flattened after the manner of ferrugata,
whereas in rufomffma they bulge just before the suture; second segment shining,
lively rufous, with black and blackish markings ; a blackish triangle, owing its
color to appressed black hairs, has its apex cut off by the anterior border of the
segment, and its base about the middle of the segment prolonged at the angles
obliquely downward and hindward in the form of a suffused and finely evan¬
escent horn. Looking at the insect with the head downwards, the triangle and
its prolongations resembles in form the skull of an ox — or better, a gayal — with
the nose cut of and the horns shadowy. Below the base of this triangle the color
of the dermis shows as' a broad rufous baud, with the slightest indication of a
dark middle line, such as may sometimes be seen in ferrugata ; the posterior mar¬
gin of the segment is broadly black, with a yellowish dot medially; this black
margin is replaced at the middle of the sides by a yellowish iringe, which is con¬
tinued beneath; the third segment, so far as visible, is colored like the black
margin of the second, with the central yellowish spot and the yellowish fringe
beneath ; the fifth and sixth are covered with yellowish or golden pubescence,
and the last, as the sixth beneath, is black.

Hub. — Guanajuato, Mexico (Dr. A. Duges) ; one specimen.

This species is not very near to anything we have seen. The pale
thoracic band, with black above and below, suggests the condition
of affairs in dugesii; whereas the abdominal markings faintly sug¬
gest quad rig uttata, the portions left rufous corresponding to the four
spots of that insect, at least to some considerable extent. If, as was
argued when prunotineta was described, dugesii is derived from more
or less hairy types such as prunotineta; it appears probable that
quadriguttata and ferrugata represent even a later stage of evolution
than dugesii, though in a different line which may be indicated bv
such a species as rufosuffusa.

Prosopis asinimis u. sp. % . — About 5 mm. long; black, with yellowish
white markings. Head and thorax strongly punctured; metathorax truncate,
rugulose; mandibles strongly bifid; the inferior margin of the clypeus is brown,
but otherwise, it and the rest of the face below the level of the insertion of an¬
tennae is yellowish white; the yellowish white continues on the sides of the face
above the level of the antennae about as much as the length of the scape, ending
in an obtuse point at an angle of about 50° : the face markings, taken altogether,
strongly suggest the head of a donkey, with erect ears, hence the specific name;
scape broadened, truncate : flagellum dark brown ; collar and tubercles yellowish
white: tegulse pale. Femora black, more or less pale at distal ends; tibiae yel¬
lowish white, the four posterior ones ringed with black about their distal halves ;
tarsi yellowish white, terminal joints brownish. Wings hyaline, nervures and
stigma piceous ; recurrent nervures uniting with transverse cubitals ; second
submarginal cell slightly narrowed towards the marginal. Abdomen with the
anterior face of the first segment finely pubescent, posterior lateral margins of
this segment also finely white pubescent ; posterior half of abdomen becoming

TRANS. AM. ENT. SOC. XXII.

AUGUST. 1895.

300

T. D. A. COCKERELL AND J. E. C'ASAD.

more or less brownish and finely pubescent, the pubescence in certain lights pro¬
ducing a slightly silvery appearance.

Hub. — Las Cruces, New Mexico, on campus of Agricultural Col¬
lege, September, 1894 (Ckll., 2404). Type in coll. Am. Ent. Soc.

Prosopis rudbccltia- n. sp. % . — About 5 mm. long; black, with prim¬
rose yellow face markings. Head and thorax closely punctured ; metathorax
more or less rounded, hardly truncate ; face, including clypeus, below level of in¬
sertion of antennae primrose yellow, sutures conspicuously black : the yellow ex¬
tends upward a little way between the antennae, and on each side of the antennae
remote from the margin of the eye there extends upward a yellow process, which
broadens toward its end. the length of this process being not much more than
half the length of the scape; scape broadened, truncate, black with an elongated
yellow mark on its outer side ; spot on tubercles and small spot on tegulse yellow¬
ish. Femora black ; anterior tibiae brownish yellow, dark behind; middle tibiae
black, with the proximal end yellowish ; posterior tibiae black, with the proximal
two-fifths pale yellow; tarsi brown, the four posterior ones yellow at their prox¬
imal ends. Wings dusky hyaline, nervures and stigma piceous ; recurrent ner-
vures uniting with transverse cubitals. Abdomen finely punctured, very finely
pubescent; the pubescence on the thorax is sparse, white on pleurae, tinged with
fulvous on dorsum.

Hub. — Santa Fe, New Mexico, July 19, 1894, on liudbeckue la-
ciniata (Ckll., 1563). Type in coll. Am. Ent. Soc.

This seems to be a distinct species, though very similar to P. an¬
tenna, Um.

I’roxopis bipes n. sp. 9 • — About 6.5 mm. long; black, with yellow mark¬
ings; venter and dorsulum closely and strongly punctured: clypeus rather
sparsely punctured ; abdomen with fine shallow punctures, not so close as those
on dorsulum ; metathorax rugose, abruptly truncate, concave centrally, with the
upper medial portion strongly longitudinally wrinkled. Legs very lightly clothed
with silvery hairs. Abdomen shiny, second segment with a patch of white pu¬
bescence on each side along the hind margin, apical segment tufted with silvery
hairs; sides of face extending from mouth upward about three-fourths length
of eye, collar, tubercles, spot on tegulfe, and basal portions of tibiae and tarsi,
yellow ; the yellow on the sides of the face gradually broadens to the insertion
of the antennae, where it is notched, and then continues broad until it ends ab¬
ruptly. These yellow markings resemble a pair of feet standing on tiptoe, hence
the specific name proposed ; the heel of each foot is against the socket of an an¬
tenna; flagellum brownish beneath; clypeus entirely black; mandibles black.
Wings hyaline, nervures and stigma piceous,

Hub. — Las Cruces, New Mexico, on campus of Agricultural Col¬
lege, September, 1894; two specimens (Ckll., 2411, 2412).

Mr. Fox remarks, concerning bipes, that it is related to varifrons
and affinis, but distinct ; differing by the much greater space between
the hind ocelli in comparison to that between them and the nearest
eve-margin. He adds, “ the punctuation of the dorsulum is not quite
so close as in the two mentioned, and in varifrons there is yellowish
on the pronotum.”

NORTH AMERICAN HYMENOPTERA.

301

ON THE LARVE OF SOME NEMATOID AXI> OTHER
SAW-FEIES FROM THE NORTHERN
ATLANTIC STATES.

BY HARRISON G. DYAB.

The larvae of our saw-flies have been much neglected, and the
majority of those here described have not been referred to previously
in literature, though they were collected at random. They include
only those that I have succeeded in bringing to imago. Mr. C. L.
Mt irlatt, of the Department of Agriculture, has kindly determined
a number of them.

Fristipliora tibialis Norton.

Larva. — Head whitish, scarcely shining, eye black, mouth brown ; a green tint
by transparency ; width 1.5 mm. Body smooth, not shining, faintly 4-annulated,
translucent leaf-green, the pulsating edges of the dorsal vessel forming a geminate
white dorsal line, filled in with the darker green blood, the anal end usually
touched with crimson ; segmental incisures a little folded, forming transverse
whitish bands when the segments are retracted ; tracheal line evident; thoracic
feet clear, moderately spreading, abdominal ones small, present on joints 6-11
and 13.

Lad stage. — As before, but the head is shining, with brown dots; body also more
shiny ; width of head the same as before ; the larvae form brown cocoons in the
earth.

Found on the white birch ( Beta la papyrijera ), sometimes hiding
under the bark, or on the leaves at Iveene Valley, New York ; also
on willow and yellow birch at Jefferson, N. H.

Venial iis similai’is Norton.

Egg. — The eggs are laid in incisions, solitary under the lower epidermis, the
cuts forming semi-circular incisions .8 mm. in diameter.

First stage. — Eating a hole in the leaf; lashing the body when disturbed. Head
entirely blackish, almost black, mouth pale, width .4 mm. Thoracic feet large,
black except at the joints. Body annulate, shining, translucent whitish ; ali¬
mentary canal green; a pair of button-like, bjack anal tubercles; no suranal
plate visible : feet on joints 6 11 small, eoncolorous; on joint 13 rudimentary.

Second stage. — Head pale, shaded with brown, most distinctly in a vertical me¬
dian and lateral stripe; eye and mouth dark; width .6 mm. Thoracic feet
watery, black at base and tip. Body more greenish than before, as the alimen¬
tary canal shows plainer ; traces of blackish subventral tubercles.

Third stage. — As in the next stage, hut the markings on the head are more dif¬
fuse and brownish ; width .9 mm. Thoracic feet black tipped.

TRANS. AM. ENT. SOC. XXII.

AUGUST. 1895.

302

HARRISON G. DYAR.

Fourth stage. — Head round, wider than high, clypeus large; width 1.2 mm.
Pale greenish, eye black; a narrow blackish line along median suture arid right
across the clypeus above; a lateral brownish one above and behiud the eye.
Thoracic feet moderate, abdominal small, on joints 6-11, 13; segments rather
obscurely 4-annulate, shining between the annulets, greenish ; general appear¬
ance not shining, translucent yellowish green, alimentary canal darker, but not
contrasting ; no marks nor tubercles.

Fifth stage. — As before ; width of head 1.5 mm. ; anal processes short, cylindric-
truncate, brown tipped.

Sixth stage. — Much as before, but the two anterior annulets are obscurely watery ;
width of head the same ; the larvae enter the earth to form their cocoons.

Food-plant. — Locust (. Robinia pseudacada ). The larvae are soli¬
tary and eat holes in the leaves or sit on the edge of a leaf, as de¬
picted in the figures copied from Comstock in the Fifth Report U. S.
Ent. Com., p. 369.

Neinatiis niemlifiis Walsh.

Two species with green females were sent to Mr. Marlatt and de¬
termined as mendicus. The larvae are not inquilines, but Mr. Mar¬
latt states that Walsh’s conclusions are not improbably founded
upon error. Therefore, I will describe the first larva under this
name, as it feeds on willow. The other is different, the fly also is
considerably larger than mendicus, with only very slight brownish
black marks on vertex of head and on thorax. I distinguish it
below as N. pinguidorsum.

Egg. — Laid anywhere on the leaf in semicircular saw-cuts just under the upper
epidermis ; cuts 1.5 mm. in diameter.

First stage. — Head blackish testaceous, shining, eye and mouth black; higher
than the body; width .3 mm Body indistinctly 4-annulate, not very shining,
greenish. Thoracic feet and anal prongs blackish; abdominal feet on joints 6-11
and 13.

Second stage.— Head dull testaceous, a blackish longitudinal line at the vertex,
one upward from each ocellus ; eye black, mouth brown : width .55 mm. Body
dull greenish, thoracic feet concolorous; a faint blackish tinge above spiracles
and a little on subventral ridge on joints 2-4, pale aloug dorsal line: posterior
portion of the body curved under so as to touch the venter; anal prongs blackish.

Third stage. — Head rounded, flattened before, pale green, faintly brownish
tinged; a black longitudinal line over the vertex, reaching top of clypeus: a
lateral transverse line over ocellus, not quite reaching vertex ; mouth brown ;
width .9 mm. Body soft, leaf green, a faint blackish dorsal and substigmatal
shade line: venter a shade paler. Feet small, green ; anal prongs blackish. Body
scarcely annulate, not shining; tracheae showing as a white line.

Fourth stage. — Head clear green, marked as before, the marks clouded, not so
black as ocelli; an additional patch at apex of clypeus; width 1.15 mm. Body
uniform leaf green, not shining, except in the creases of the annulets ; feet clear,

NORTH AMERICAN HYMENOPTERA.

303

no marks : color paler, clearer greenish yellow than before, tracheae very distinct,
white ; annulets very obscure ; anal prongs with a very faint blackish shade, a
few setae on anal plate.

Cocoon. — At first pale yellow, latter brown, opaque.

Food-plant. — Willow (. Salix ). Found in Central Park, New York,
and Plattsburgh, N. Y. I am not certain that I have observed all
the stages, but give them as they are in my notes.

Neinatiis pinguidorsum n. sp.

Third (?) stage. — Eating a hole in the leaf ; all green, with marks as in the next
stage, but faint; eye black; width of head 1.0 mm.

Fourth stage. — Head greenish, eye black, shining, a dark shade bordering the
median suture and a brown one from the ocellus upward ; width 1.3 mm. Body
translucent, of the color of a solution of chlorophyl ; segments 4-annulate, with
indications of dusky tubercles on second and third annulets, segmental incisures
folded. On each side of the dorsal vessel is a segmentary patch of pale yellow
consisting of a collection of fat granules, showing by transparency, present on
joints 5-12. Feet on joints 6-11 ; on the anal plate are two short, brown-tipped
projections.

Fifth stage. — As before, the fat-patches very evident, pale yellow, consolidated
into distinct spots; end of joint 13 above and below deep reddish ; width of head
1.75 mm.

Food-plant. — White birch (Betula papyrifera). The larvae are
solitary and rest on the edge of the leaf. Found at Keene Valley,
New York.

I do not know the true number of stages of this species.

Nematiis dorsiviltal us Cresson.

Egg. — Laid in semicircular incisions under the upper epidermis. 1.5 mm. long.

Second stage. — Head testaceous, a brownish shade up from the black eye ; width
.65 mm. Body pale yellowish, the food showing green by transparency, slightly
shining, subannulate.

Third stage.— Head as in the next stage, but pale testaceous; jaws black ; width
1.0 mm. Body the same, slightly shiuiug, subannulate.

Fourth stage. — Head greenish, with a slight honey tinge, large, higher than the
dorsum; a faint blackish shade runs up not far from the black ocellus which is
surrounded by a black spot; mouth brown, a dark mark for antenna; width
1.4 mm. Body subtranslucent poplar-leaf green, not shining, the segments
folded; no annulets, or the merest trace. Feet on joints 6-11, 13: anal prongs
short, brownish; blackish marks at the base of the clear thoracic feet; tracheal
line evident ; no tubercles.

Fifth stage. — The same, with same width of head.

Both sexes were sent to Mr. Marlatt and determined as above.
Is our species really the same as the Nevada one?

Solitary edge-eaters on poplar at Plattsburgh, N. \ .

The female fly is entirely green, except for the black marks and
the legs, which are greenish testaceous.

TRANS. AM. ENT. SOC. XXII.

AUGUST, 1895.

304

HARRISON G. DYAR.

\ <‘111:1 Ins liiteotorgum Norton.

Larva. — Head shining black, sutures of mouth pale; width .85 mm. Feet on
joints 6-11 and 13; anal prongs black. Body shining green, yellowish sub veil -
trally and on the legs; segments obscurely annulate, all minutely pilose, but no
distinct tubercles; a blackish subdorsal shade-band and also blackish on the two
parts of the subventral ridge. Thoracic feet and anal plate shaded with dusky
black ; a medio-veutral series of black patches.

Last stage. — Head shining dark vinous,. eye black ; minutely pilose ; width 1.1
mm. Body shining, sordid greenish, rather dark, shaded more or less with vinous,
especially subven trally ; segments obscurely annulate, minutely pilose ; dorsal
vessel a dark band ; the subventral ridges show as blackish elevatious. Thoracic
feet partly, anal plate and prongs largely black.

A female from hybernating pupa was named “ Amman ronematus
luteotergum” by Mr. Marlatt ; a pair, male and female, from the
same batch of larvse, but which emerged during the same season,
were designated “ Pteronus n. sp., near latifascmtus Cress.” This
must be simply a case of seasonal dimorphism.

Gregarious edge-eaters on alder (. Alnus ), Keene Valley, X. Y.

Nematiis Int i fascial u* Cresson.

Larva. — Head vinous brown, dotted with brown over the vertex, eye black :
width 1.6 mm. Body purplish vinous tinted, a metallic red-green shade over the
dorsum, partly produced by the food showing by transparency ; segments indis¬
tinctly 6-annulate, shining, a lateral black shade band, scarcely noticeable against
the metallic shade, supplemented by black patches on the folds around the
spiracles, subventrally and on the bases of the legs, the latter distinct against
the pale purplish subventral color. Feet all pale, yellowish tinged; abdominal
on joints 6-11, 13, small; anal plate and short prongs black; setate minute,
seen with a lens.

Allied to the preceding; solitary or partly gregarious on white
birch (B. papyrifera ) at Keene Valley, Xew York. Imago the same
season.

Xcinatus vent ral is Say.

Eggs (see “ Insect Life,” i, 36). — In large clusters of flat, semicircular saw-cuts
under the lower epidermis, 1x2 mm. in size.

First stage. — Head round, shining black ; width 0.55 mm. Thoracic feet long,
spreading, black except at the joints ; segments indistinctly 4-annulate, abdominal
feet small, on joints 6-11, 13. Body slightly shining, blackish green, subtrans-
lucent ; anal prongs concolorous.

Second stage. — As before. Head .75 mm. wide. Body smooth, greenish black,
anal prongs black.

Third stage. — Head shining greenish black ; width 1.0 mm. ; eyes and jaws
black. Body scarcely annulate, smooth, shining, obscure blackish olive, anal
fork black tipped. Thoracic feet blackish, marked with black. Body unicolorous.
immaculate, or the orange spots of the next stage partly present (another brood).

Fourth stage.— Head shining black, the frout with four grooves aud two dents
above the clypeus ; sutures around the mouth brown ; width 1.4 mm. Thoracic

NORTH AMERICAN IIYMENOPTEEA.

305

feet large, pale olive, marked with black; abdominal ones small, on joints 6 11,
13, pale green. Body smooth, irregularly 5-annulate, the creases like slight folds ;
shining blackish olivaceous, with a series of lateral pale orange spots, distinct
only centrally. The spots are above the subventral fold on annulets 2 and 3.

Larvae vary in shade, some are blacker than others, and the orange spots vary
in distinctness. The larvae scratch the leaf with their anal prongs and make a
rasping sound.

Fifth stage. — Width of head 1.4-1. 6 mm. As before, slaty black, except the feet ;
lateral orange patches on joints 3-12 ; the two median annulets have somewhat
corneous, dorsal, transverse areas, shining, but concolorous with body. Feet all
pale watery. Two days after molting the' larvae began to turn shining aud livid
with a pale dorsal streak anteriorly and entered the ground to spin their cocoons.

Food-plants. — Found on willow ( Sali.r babylonica) in Central
Park, New York, and on poplar (Pop ulus grand identatus) at Platts¬
burgh, N. Y. [The latter produced lombardus.~\

The characteristic larva of this species has been described in Har¬
ris’ “Entomological Correspondence,” p. 270. and in “Insect Life,”
i, p. 33, and quoted in the “ Fifth Report FT. S. Ent. Commission,”
pp. 524 and 588.

Male Hies emerging the same season were determined by Mr. Mar¬
latt as N. ventralis, but male from pupae which had hibernated were
named “ Pteronus lombardus Marlatt MS.” I have not as yet bred
any females, and suggest the seasonally dimorphic relation of these
two forms by showing the apparent identity of the larvae.

Nematus Marlattii n. sp.

Larva. — Solitary, eating on the edge of alder leaves ; sitting on the edge or in
a hole, the posterior half of the body curled spirally. Head full at vertex, round,
clypeus rounded, distinct ; pale, shining, greenish brown, with a clouded, deep
black longitudinal patch at the vertex and one laterally over the black eye: cly¬
peus and mouth rather darker brown ; width 1.2 mm. Thoracic feet moderate,
pale ; abdominal ones on joints 6-11, 13 ; segments moderately 4-annulate, smooth,
not shining, subtranslucent leaf-green, dorsal vessel scarcely showing; a broad
subdorsal blackish green band, broken into a series of segmental patches, extend¬
ing down to enclose the spiracles; double subventral ridge also blackish, but dis¬
tinctly spotted with pale, corresponding to the obsolete tubercles; the subdorsal
patches also contain pale spots corresponding to tubercles on annulets 2 and 3,
but less distinctly.

Imago. — Length 25 inch., expanse .5 inch. ; antennae nearly three-fourths the
length of body. The coloration corresponds with Norton’s description of ven¬
tralis, but the orbits are continuously pale.

A single female was determined by Mr. Marlatt as N. ventralis
Say, and indeed corresponds closely with the description. However,
as the larva is very different, the species must be separate.

(39)

TRANS. AM. ENT. SOC. XXII.

SEPTEMBER, 1895.

306

HARRISON G. DYAR.

Nematus Hurisonii magniis n. sp.

Larva. — Sitting on the edge of a leaf and thrashing the abdomen about when
disturbed. Head normal, round, black, sutures paler ; width 2.2 mm. Thoracic
feet moderate, pale, abdominal ones on joints 6-11, 13, well developed ; short
black anal spines. Body smooth, shining, faintly 3-annulate, dorsal vessel yel¬
lowish ; color bluish or leaf-green, with a series of orange-yellow, large lateral
blotches on joints 3-12 and numerous black spots as follows : two transverse rows
per segment above the spiracles, the anterior of three on each side, the posterior
of four, its lower (lateral) one largest ; two black patches on the halves of the
subventral ridge, the lower posterior one somewhat broken ; on joint 13 a large
lateral black patch and dorsal suranal blackish cloud.

Imago. — Female : length 9.5 mm. Black, lateral lobes of mesotkorax dark
brown. Abdomen yellowish ferruginous, except basal plates and extreme tip.
Wings hyaline, a faint dusky shading below stigma ; posterior angles, labrum and
palpi, tegulse and legs pale, coxie black at base, posterior coxae and all the femora
largely yellowish ferruginous, apical three-fourths of posterior tibiae and their
tarsi black.

Mr. Marlatt has confirmed my determination that this species is
undescribed.

Two larvae on poplar at Plattsburgh, N. Y.

This rather large fly is named for my friend, Prof. George H.
Hudson.

\einatus corylus Oresson.*

Third stage.- — As in the next stage, but less green, more sordid yellowish : all
shining, subventral black spots distinct, anal plate black, contrasting, contiguous
to a small spot below the anus; width of head .7 mm.

Fourth stage. — Head shining black ; width 1.0 mm. Body shining green, a little
paler than the upperside of the alder leaf ; dorsal shading (of the next stage)
scarcely indicated, except as a dusky subdorsal shade on thorax, but anal plate
black ; subventral folds black, forming two black spots per segment, the upper
anterior, the lower posterior. Thoracic feet black at base and tip; median ven¬
tral black spots present, but abdominal feet concolorous with body ; not opaque,
the tracheal line visible ; set® on two annulets.

Fifth stage. — Head shining brown, sordid, eye black on a diffuse spot; width
1.4 mm. Body indistinctly annulate. Feet on joints 6 11, small on 11 ; thoracic
feet moderately large. Body long, slender, green, of a dark tint, the spiracular
area on each segment faintly discolored, yellowish ; dorsal area completely shaded
in black, slightly metallic (bronzy) ; double subventral folds, abdominal feet out¬
wardly and a row of medio ventral dashes black ; sometimes a little black stig-
matal spot. Thoracic feet pale, marked with black above on joints and claw ;
anal plate black ; set® minute, dark.

Cocoon. — An oval brown structure at the surface of the ground, as usual in the
genus.

Slender, gregarious edge-eaters on alder, with five long, slender,
eversible, medio-ventral scent glands, emitting an unpleasant odor,

* These larvae differ from those described by me under the same name (Can.
Ent. xx vi, 44), but perhaps not to a speciiic degree.

NORTH AMERICAN HYMENOPTERA.

307

situated posterior to the abdominal feet on joints 6-10. Found at
Weld Pond, Franklin County, Maine.

Nematus lateralis Norton* (3E). Larva. — Head rather flat before, green,
a black shade from ocellus each side nearly to vertex and narrowly in the sutures
of clypeus and median suture to vertex ; ocellus in a black spot; width 1.4 mm.
Body leaf-green, rather dark, slightly shining; feet on joints 6-11, 16, small, con-
colorous; segments rather indistinctly 5-annulate, with minute, dark, setiferous
dots on two central annulets, most distinct on the thorax and subventrally. Body
slightly translucent, tracheae evident, no marks ; anal feet absent, but on end of
anal plate a pair of colorless short processes with enlarged ends.

Last stage. — As before, hut a black shade on clypeus; segments 4-annulate, not
shiny, annulets 2 and 3 higher and shiny ; no setiferous dots, but minute pile on
head and thorax ; blackish marks at base of thoracic feet.

Solitary edge-eaters on white birch ( B . papyrifera), the body not
elevated, but bent with the leaf. Found at Plattsburgh, N. Y., and
Keene Valley, New York ; also in Central Park and along Riverside
Drive, New York City, on B. populifolia.

Note. — -The preceding larvse are all adapted to rest on the edges
of leaves. The two following, however, rest fiat on the surface, are
slightly flattened, and would be taken for species of Selandria at
first glance. But their number of legs is normal for the Nematids.

Xenial us thoracicus Harrington.

First stage. — Head round, higher than wide, but not narrowing to vertex ; shin¬
ing, eye black, mouth brown ; width 0.25 mm.

Second stage. — Similar; eye surrounded by a black spot: head rather higher;
width 0.33 mm.

Third stage. — Head almost whitish, pale: width 0.5 mm. ; joint 2 small, making
the head appear prominent. Body much as in the following stages, but paler.

Fourth stage. — As in the next stage in all points, but a little paler, though darker
than in the jirevious stage ; width of head 0.7 mm.

Fifth stage. — Head round, smooth, shining, greenish testaceous, prominent; eye
black, mouth brown ; width 1.0 mm. Thorax a little enlarged, the feet spreading
widely, not concealed. Abdomen slightly tapering posteriorly, gradually be¬
coming smaller from the thorax ; feet present on joints 6-11 and 13 ; segments
4-anuulate. smooth, without tubercles, not shining ; color pale clear green, the
alimentary canal showing dark green, or the surface covered with a slight white
bloom. Thoracic feet watery greenish ; abdominal ones short, concolorous with
the pale suhventral region ; anal plate rounded.

Sixth stage. — As before ; width of head 1.4 mm.

Seventh stage. — Head held forward ; light testaceous, faintly brownish, smooth,
shining minutely reticulated ; eye black, mouth brown ; width 2.0 mm. ; joint 2

* Identified by Mr. Marlatt, hut doubtfully. He says: “3E does not agree
altogether in color with this species, but seems to come closer to it than to any
other. . . . Since the original type of lateralis is lost, it may be as well, perhaps,
to describe your specimen as a new species.”

TRANS. AM. ENT. SOC. XXII.

SEPTEMBER, 1895.

308

HARRISON G. DYAR.

depressed anteriorly. All as in the previous two stages: skin smooth, but not
shining ; at the end of this stage the larvae fade to a whitish color with a bright
green dorsal hand and enter the earth without molting.

Cocoon double, the outer layer thin, brown, the inner dark brown, compact, but
not very hard ; size 4 x 8 mm.

Larvae found at Woods Hull, Mass., Jefferson, X. H., and at
Plattsburgh, N. Y.

Solitary, resting on the venter on the under surface of a leaf ;
eating only the lower epidermis and parenchyma until nearly full
grown, when they eat the whole leaf for a short time. The food-
plant is the sugar plum ( Amelanchier canadensis ).

\cmnliis nnicolor Marlatt MS.® (4.T). Larva. — Head slightly granular,
shagreened, a little pilose, pale brownish, pale around mouth, not shining; eye on
a black spot; two blackish shades on the back of head behind the vertex ; width
1.8 mm. Thorax a little enlarged, its feet spreading ; venter flattened ; feet on
joints 6-11 and 13; subventral region slightly fluted with a few pale sets? ; seg¬
ments not very completely 5- to 6-annulate, segmental incisures folded, not
shining, translucent greenish, food giving a dusky tint; subdorsally below the
skin a series of emerald-green or pale green granules and streaks, forming a
nearly continuous band or even an evident white subdorsal band; tracheal line
evident; spiracles pale. When mature the larvae became pale yellowish with a
bright emerald green tint on the thorax and entered the ground.

Cocoon as usual.

Shape and habits of the preceding. Found on the white birch at
Keene Valley, New York.

INjecilosoma inferent isi Norton.

Larvse. — Singly on alder, stretched out flat on the surface of the leaf ; smooth,
not shining, pale leaf-green, covered with a white bloom; segments 6-annulate.
Body slightly largest through the thorax, smaller posteriorly. Thoracic feet not
large, just visible from the dorsal aspect; abdominal ones on joints 6 12, 13 pos¬
teriorly. Head with a white bloom ; eye surrounded by a black spot; width 1.2
mm. ; length of larva 18 mm.

Last stage. — No white bloom. Body smooth, slightly shining, pale green, a little
yellowish and rather opaque. Head less green, eye black ; gradually the larva
becomes a translucent waxen pinkish and seeks a place for hibernation.

Found on the alders in Keene Valley, Xew York, the imagoes
the following April.

The two sexes of this fly are very different, and the female has
been described by Provancher as Strongylogaster a/bosecta..

tloiiopliailn us Say. Larva. — Head black throughout, not very

shiny, smooth ; width 1.6mm. Feet on joints 6-13; body thick, sides perpendicular ;
no ridge; segments 6-annulate, the annulets less distinct than the segmental in-

* Mr. Marlatt identifies the fly bred from this larva with specimens from Mt.
Hood. Oregon, to which he has given the MS. name of Pteronus unicolor.

NORTH AMERICAN HYMENOPTERA.

309

cisures, smooth, slightly shining; color opaque whitish, with a leaden gray tinge.
Thorax, subventral region to spiracles and joint 13 faintly shaded with pale yel¬
low ; trachea] line evident; a layer of gray-white pigment seems to lie under the
skin like a blanket over the dorsal area nearly down to the spiracles.

Last stage. — Not observed: the larva molted and immediately entered the earth.

Found on a young leaf of ash ( Fraxinus ) at Keene Valley, X. Y. ;
also on the ash at Rouse’s Point, X. Y., in June.

Taxonus multicolor Norton. Larva. — Head with a gray lateral patch and
one at the vertex, shining; width 1 mm. Thorax a little enlarged, feet on joints
6-13; segments neatly 6-annulate, not at all shiny; color all sordid white with
faint traces of a shaded black subdorsal line ; food showing faintly by trans¬
parency.

Next stage. — Head pale brownish, a large square black patch on the vertex, not
reaching the clypeus: a lateral patch; mouth brown; head scarcely shining;
width 1.4 mm. Body not shining, with a smoky tinge, a very broad olivaceous
black subdorsal band, irregular above ; faint blackish marks in impressed spots
above the subventral fold. Feet all pale; anal plate transverse, black, not
shining ; two little pale dots on annulet 1 of joint 2 ; a brown shade at apex of
clypeus.

Last stage. — Width of head the same ; translucent and waxy throughout, tinged
with vinous and tar-brown, the latter in the folds and on vertex of head. Body
shining, smooth, annulate. On acquiring this stage the larva; enter the ground
to construct their hibernation cells.

Sitting flat on the venter on the leaves of the white birch ( Betula
papyrifera ) ; also on the yellow birch ( B . lento).

llylotoina scapularis King.

Entirely similar to and indistinguishable from the larva of H.
pectoralis Leach, which I have elsewhere described. Feeds on the
white birch.

llylotomu cserulens Norton.

Also indistinguishable from the larva of H. pectoralis. Feeds on
white birch.

Hylotoma Mclieayi Leach (2L). Larva. — Head pale greenish yellow, eye
and mouth black ; a dusky black stripe over vertex and upper part of clypeus ; width
1.8 mm. Thoracic feet large, abdominal small, on joints 6-11, 13. Body segments
3-annulate, the obscure shining tubercles greenish, tubercle 1 marked with black
on joints 2-4; subventral ridge very prominent, undulate setiferous: color light
green, darker dorsally, with a broad, distinct, pale yellow subdorsal band between
tubercles 1 and 2 ; spiracles black, subventral ridge faintly discolored, brownish ;
all tubercles setiferous; line of tracheae yellowish.

Cocoon reticular, of yellow silk, at the surface of the ground, as usual in the
genus.

Found on black birch at Plattsburgh, and on white birch and
mountain ash at Keene Valley, X. Y. ; also on Pyrus arbutifolia at

TRANS. AM. ENT. SOC. XXII.

SEPTEMBER, 1895.

310

HARRISON G. DYAR.

Woods Holl, Mass., and on sugar plum ( Amelanchier ), willow
and strawberry at Jefferson, N. H.

It will be noted that this larva is widely different from the one
described by Norton as II. McLeayi, and also from the one which I
have recently described under the same name in the “ Canadian
Entomologist.” The latter larva is marked by the letter S in my
notes, the present one by 2L. The flies were sent to Mr. Marlatt,
who confirms my determination saying “ your specimens labeled S
and 2L are unquestionably McLeayi .”

Apparently, in this genus, there are three species produced from
one larva ( pectoralis, scapularis and cceruleus) and three larvae which
produce one species of imago (McLeayi).

I want to call attention to this curious problem in order to induce
others to assist in investigating it. I may state that the larvae which
produced McLeayi were bred in different years, so that it is highly
improbable that there could have been any confusion. Moreover,
they were fed in small jars on single leaves, so that other larvae
could not have been accidentally introduced without discovery.

Strongj logawler soriculal us Provancher. Larva. — Head whitish, with
sordid testaceous tinge, shining, eye black, mouth brown ; some with an obscure
brownish shade at vertex, or a black patch behind eye and a large one on vertex.
Body not shining, whitish waxy, appearing green, except subventrally, from the
food showing by transparency ; in later stages actually green ; segments finely
6-7 annulate; spiracles dark, tracheal line white; feet on joints 6-13.

Found on the common brake ( Pteris aquilina) solitary, sitting flat
on the venter, or on the edge of a leaf. Pupa form in a cell bored
in soft wood.

*Strongjiogaster aiiniilosiis Norton.

Not distinguished from the preceding and occurring on the same
food-plant. Some of the variations above noted and referred to
individual differences are probably really of specific value.

* Strongylogasler luctiiosus Provancher.— Head shining whitish with
a brown tint, eye and mouth dark ; a black shade behind the eye, touching it ; a
neat, shining, black patch on the vertex, pointed anteriorly and reaching the
clypeus, where it enlarges a little; width 2.4 mm. Body neatly annulate, light
emerald-green dorsally, waxy whitish on joint 2 anteriorly, joint 13, subventrally
and on the feet; last two joints of spreading thoracic feet black tipped ; a pair
of black patches at base of anal plate, and a series of little orange ones below the
black spiracles on joints 3-12. Body slightly shining.

Found with the preceding at Keene Valley, N. Y. ; also on Pteris
at Jefferson Highlands, N. H.

* Determined by Mr. A. D. MacGillivray.

NORTH AMERICAN HYMENOPTERA.

311

*Strongylogaster pinguis Norton.

Egg. — Laid in nearly circular saw-cuts under the upper epidermis in tlie middle
of the leaf.

First stage? — Head as in the next stage, but the clypeus entirely black ; width
.35 mm. (probably an error; .5 is the calculated width), smooth, annulate, the
poin ts on joint 2 indicated ; subventral region a little scalloped ; color pale green¬
ish, food giving a darker shade.

Second stage? — Head conical, high, the apex curiously pointed, blackish brown,
pale below; eye black ; width .6 mm. (= .7?). Thorax a little enlarged, subven¬
tral region protruding, fluted, applied close to the leaf ; segments obscurely an¬
nulate; feet on joints 6-13; pale green, with an olivaceous tinge, not shining,
the whole dorsal region blackish, defined at the lateral edge : a pair of colorless
elevated flaps in place of the cervical shield ; small black anal points.

Third stage. — Head conical, round-pointed at the apex, sutures indistinct ; ma¬
hogany red. pale around the mouth ; ocellus black ; width 1.1 mm. (= 1.0 mm. ?).
Two conical processes on the first annulet of joint 2 and a single median one just
behind them on the third annulet of 2. On joint 13 a small subdorsal point and
four such on the edge of the segment posterierly; subventral folds fluted, with
pointed concolorous tubercles; segments obscurely 7-annulate with indications of
pointed tubercles snbdorsally; color not shining, yellowish olivaceous from the
food showing through the pale yellowish body ; a defined black lateral line, be¬
ginning on joint 2 behind the points and ending on joint 13 behind the points
there.

Fourth stage. — Head 1.4 mm. ; segments 6-annulate ; subdorsal points on the
second and fourth annulets and six on the subventral fold are distinct ; otherwise
as before.

Fifth stage. — As before; width of head 2.0 mm.; a blackish cloud at the apex
of head.

Sixth stage. — Of the same shape as before, but without any tubercles, all shining
sordid yellowish in color without marks. Head a shade more reddish than the
body; width as before. The folds of the body have a tarry-brown shade. In
this stage the larva; do not eat, but enter the ground to form cells for hibernation.

On the birch and linden at Keene Valley, N. Y. The larvse sit
flat on the venter on the surface of the leaf, solitary ; also on the
birch, sugar plum and maple at Jefferson, Highlands, 1ST. H.

These curious larvse are very unlike most Strongylogaster larvse.

Strongylogaster si I>noriii is Provanclier. Larva. — Head whitish, upper
half gray, except posteriorly ; a brown band over the clypeus between the eyes;
eye in a black spot; width 1.2 mm. Body segments 6-annulate, smooth, not
shining; dorsal area above spiracle, except on joint 13, leaf-green ; a dorsal and
lateral gray shade, the latter bounding the green area, often faint or absent ; sub¬
ventral region and venter whitish ; joint 13 dorsally pale green, contrasting.
Thoracic feet moderately large, pale; abdominal ones on joints 6-13; antennae
distinct below eye, pale ; minute white points are situated on the second and
fourth annulets, one in the anterior row and two in the posterior above the stig-
matal line, then two points below it and smaller ones on the substigmatal folds.

Last stage. — Head shining, pale, the upper half and clypeus brown, the marks
cut in a reticulate manner with fine pale lines. Body shining, without points,

TRANS. AM. ENT. SOC. XXII.

SEPTEMBER. 1895.

312

HARRISON G. DYAR,

6-annulate, green to the spiracles, waxy greenish below, marked with tar-brown
in the folds ; spiracles black. Thoracic feet clear ; eye on a black spot. On at¬
taining this stage the larva: bored in soft wood to pupate.

Sitting flat on the venter or curled spirally on the back of a leaf
of the dock ( Rumex ).

Common along West End Avenue, New York City, in the vicinity
of unoccupied building lots.

Strongylogaster apicalis Say. Larva. — Head large, shining, oc.herous,
a little brownish on vertex and clypeus; eye in a black spot; jaws black ; width
2.2 mm. Feet moderate, abdominal ones the larger, present on joints 6-13 ; dorsal
region not shining, greenish, with a little trace of white bloom, ending in a lateral
smoky black line more or less distinct ; below this line the venter and legs honey-
yellow, a little suffused by white bloom, immaculate, or with dusky black dots on
the subventral folds ; segments indistinctly 6-annulate, the folds showing as
whitish creases. Larva rolls up in a ball and falls off the leaf at the slightest
provocation.

Last stage (hibernation). — Shining, annulate, green above, whitish below, with
a trace of gray marking laterally at the joining of the colors. Head as before.
The larva passes the Winter in a cell in the ground.

Food-plant. — Raspberry (Rub us).

Tentliredo ( rcssou i Kirby. Larva. — Head very pale, slightly testaceous,
shining, a brown ocherous shade at vertex, cut (under a lens) by three pale lines,
the middle one representing the suture; width 2.4 mm. ; segments 4-6 annulate,
on second and fourth (or first and third) annulets some very minute white points,
two on annulet 2, five on annulet 4, the last substigmatal, and another substig-
matal on annulet 3 ; none on the subventral folds. Body not shining, whitish,
with a green tinge, varying to pale yellowish green, quite translucent; a shaded
subdorsal yellowish band, composed of fat granules lying under the skin, dis¬
tributed in all the annulets; food not showing greatly, dark; claws of the tho¬
racic feet brown ; abdominal feet on joints 6-13. Thorax somewhat enlarged.

Last stage. — Smooth, shining light green, annulate, no tubercles; a row of small,
dark, segmentary subdorsal patches ; otherwise as before. The larvae enter the
ground and form a cell for hibernation.

Found on the white birch at Keene Valley, sitting on the leaves,
curled spirally. Easily, drops off if disturbed. The same larva oc¬
curred on white birch at the upper limit of its growth below the
summit of Mt, Washington, N. H. (about two and a half miles down
the carriage road).

Mr. MacGillivray remarks : The specimen does not agree perfectly
with Kirby’s description, yet it does not seem to depart far enough
to consider it a distinct species.

NORTH AMERICAN NEUROPTERA.

313

1VEW KEUROPTEROID INSECTS.

BY NATHAN BANKS.

Perla (rivittala nov. sp. — Length 14 mm. Head fulvous, with a large
trilobed black spot above, the upper lobe largest and covering the ocelli, the lower
lobes extending toward the antennae; below a black V-shaped spot with the apex
upward. Antennae and mouth-parts black; a black spot behind each eye; pro-
thorax slightly broader in front than behind, its angles rounded; fulvous, with
the side margins very broadly black, a narrow black median stripe, and the an¬
terior margin narrowly black ; rest of thorax fulvous, mostly covered with large
black spots. Legs fuscous, with a pale yellowish elongate spot in front and behind
on all femora and on posterior tibia}. Abdomen brown, a pale stripe on venter,
setae dark brown. Wings brownish, veins blackish, transversals at end of discal
cells nearly opposite, radial sector forked but once, upper fork much more than
twice as long as pedicel beyond transversals, three transversals between the
postcubiti.

One male, Michigan Agricultural College, Michigan, C. F. Baker
collector.

C ll 1 oropcrla borealis ncv. sp. — Length 14 mm. Yellowish ; head a little
broader than the prothorax, pale yellow, with a dark V-shaped mark connecting
the ocelli, two dark spots in front, and a small reddish tubercle each side; palpi
blackish, antennae fuscous, yellowish at base ; prothorax short, twice as wide as
long, a little broader in front than behind, the angles broadly rounded ; pale
yellow, the elevated margin blackish, each side a little rugulose and brownish ;
rest of thorax and the abdomen brown. Legs brownish yellow, a transverse
black line at ends of femora ; setae short, yellowish in middle, brownish at ends.
Wings greenish yellow, veins of anterior pair, except subcosta and radius, brown¬
ish (in one wing there are two transversals beyond subcosta, but one is bent and
appears abnormal), transversals at end of discal cells are opposite each other, and
the upper fork of radial sector is more than twice as long as the pedicel beyond
these, there are five transversals between the cubiti.

One female, Olympia, Wash., April (Trevor Kincaid). A male
from Ft. Collins, Colo., is smaller, 10 min., and the radius is only
yellowish toward base, the transversals at end of discal cells are
slightly separated, and the forks of radial sector are not quite so
long, otherwise it is like the female.

Chloroperla pacifica nov. sp. — Length 10-12 mm. Yellowish, head a
little broader than prothorax, pale yellow, ocelli black. Antenna} yellowish,
palpi brownish ; prothorax short, fully twice as wide as long, the anterior angles
moderately prominent, the posterior ones broadly rounded, the side margins dis¬
tinctly black, within slightly rugulose. Legs pale yellow, with a black transverse
line at ends of femora. Thorax yellowish, an oblique black suture on meta- and
mesothoracic pleura. Abdomen yellowish. Wings pale yellowish, all veins yel¬
lowish, the transversals at end of discal cells are opposite to each other, the upper
fork of radial sector is one and one-half times as long as the pedicel beyond
transversals; there are four or five transversals between the cubiti.

Three specimens, Skokomish River, Wash., May (T. Kincaid).

C'liloroperla imhccilla Say.

A specimen from Olympia, Wash., agrees with eastern examples

tTRANS. AM. ENT. SOC. XXII. (40) SEPTEMBER, 1895.

314

NATHAN BANKS.

of this species. The transversals at end of discal cells are separated,
and the upper fork of radial sector is at least twice as long as the
pedicel ; there are three, sometimes four, transversals between the
cubiti.

< 'liloropvrla sijjiiata nov. sp. — Length 7.5 mm. Yellow, head slightly
broader than prothorax, pale yellow, a black triangular spot connecting the ocelli,
another smaller triangular spot below with its apex nearly touching the apex of
the upper spot; palpi brownish. Antenme yellowish; prothorax short, elliptical,
pale yellow, with a prominent black median stripe, which is slightly broader
behind, and on the front margin twice as broad as in the middle, sides slightly
rugulose; meso- and metathorax with an indistinct, median, brown stripe. Legs
pale yellowish, tibiae more brownish. Abdomen yellowish, apex broken. Wings
yellowish hyaline, veins in fore wings, except subcosta and most of radius, brown ;
transversals at end of discal cells widely separated, upper fork of radial sector
hardly one and one-half times as long as the pedicel beyond the outer transversal,
four transversals between cubiti ; some of the veins of posterior wings brownish
at tips.

One specimen, Ft. Collins, Colo. (C. P. Gillette).

Clioroperla brevis nov. sp. — Length 6 mm. Greenish yellow, head a
little broader than thorax, antenme with basal third yellowish beyond black;
prothorax with a fuscous stripe on each side margin, once and one-half as long as
broad, barely broader in front, angles rounded, scarcely rugulose; tarsi slightly
fuscous. Wings nearly hyaline, with greenish veins, transversals at end of discal
cells disjointed, the upper fork of rad ial sector is not as long as the pedicel beyond
these transversals (in one specimen it is just as long), three transversals between
the cubiti.

Sherbrooke, Canada (L’abbe F. A. Begin).

Jlegaloiiius nuestiis nov. sp. — Length 7 mm. Antenme a little longer
than breadth of wings. Wings quite broad, but over twice as long as broad ; mar¬
gin ciliate, costal area strongly dilated toward base, costal veinlets forked, radius
with six branches, the last forked at or before first gradate series ; two gradate
series, first across middle of wing, indented in middle, second one toward the
apex and incomplete. Antennae, legs and palpi luteous, face pale yellowish, ver¬
tex darker. Thorax yellowish, mesothorax brown on each anterior side. Ab¬
domen paler; wings hyaline, veins pale, dotted with black, around the margin
groups of veins are alternately black, a broad fuscous band across middle of wing
just inside of the first gradate series, several dark patches and an indistinct band
beyond the second gradate series; two slender, up-curved, slightly divaricate
processes project from the tip of the abdomen.

One female, Santa Fe, New Mexico, July (T. D. A. Cockerell).

<Jln*ysopa coloruilviisis nov. sp. — Length 15 mm. Face yellow, a broad
black stripe under each eye. a curved black line under and on the outside of each
antennal socket, very narrow on the outside; vertex green, a black stripe each
side behind the eye, pointed in front toward the outer edge of the antennal socket ;
basal fourth of autenme black, basal joint yellow, second joint fuscous, rest of
antennae pale yellowish brown. Thorax short, green, broadly margined each
side with red ; meso- and metathorax green, with a pale reddish stripe, each side.
Legs green, feet brownish. Wings greenish : pterostigma long, brownish green ;
fore wings barely pointed, hind wings more distinctly so; in fore wings the Ion-

NORTH AMERICAN NEUROPTERA.

315

gitudinal veins mostly green, base of first- sector and base of cubitus black ; the
costals, the first series of transversals, the gradate veinlets, and the branches of
the anal vein, black ; a few of the other veinlets have their ends black ; in hind
wings the veins, except costals, are mostly greenish.

One specimen, Ft. Collins, Colorado (C. P. Gillette).

lVotlio<‘lii\ysa virginiea Fitch.

Chrysopa virginica Fitch, i, N. Y. Kept. p. 91.

Nothochrysa phantasma MacGillivray, Can. Ent, 1894, p. 170.

Fitch’s species is certainly a Nothochrysa , and specimens of Mr.
MacGillivray’s species (which he kindly sent me), agree with Fitch’s
description in detail.

C'oniopteryx fitclii nov. sp. — Length 2.5 mm. Head yellowish, an ten me
brownish with white hair. Thorax yellowish, with four round black spots above.
Legs pale yellowish. Abdomen yellowish, more reddish below; wings gray;
venation as in C. vicina, except that the forks of the second sector are plainly
longer than the pedicel (in C. vicina shorter than pedicel), the upper fork is curved
toward the costa near tip, the vein that connects the first and second fork is
almost obsolete (distinct in C. vicina), and there is no connecting vein between the
cubitus and post-eubitus (distinct in C. vicina). Eyes globose, wings not ciliated.

One specimen, Ft. Collins, Colorado (C. P. Gillette).

I*a n orpa canadensis nov. sp. — Length 11 mm. Reddish, antennae
black, black around ocelli. Legs and abdomen pale yellowish. Wings hyaline ;
an apical band, broken up on posterior side ; a slender, geniculate, pterostigmatical
band; a costal middle spot; two spots of a basal band, and a very small basal
spot dark brown ; wings a little more slender than in P. dehilis, subcosta extending
to pterostigma. Abdomen short; second segment not produced behind; fifth
segment of male cylindrical, with a stout projection above; sixth and seventh
subequal, sixth with base slender, quite suddenly swollen above and below, sev¬
enth gradually enlarging, but not as large as the sixth ; eighth short, forceps
short, stout, appendages short, not reaching to base of claws.

One male and one female, Sherbrooke, Canada (P. A. Begin).

Differs from P. dehilis in smaller size, shorter forceps and appen¬
dages, as well as markings.

Fanorpa a (li li is nov. sp. — Length 12 mm. Fulvous, abdomen luteous;
wings hyaline, veins fuscous, a slender apical band, an interrupted pterostigmatical
one, a middle spot on costa, an interrupted basal band and a basal spot, brown :
subcosta runs into costa at middle in the fore wing: the radius does not curve
inwardly as much at the pterostigma as in P. nebulosa, and the wing is less slender
than in that species. Abdomen short, second segment not produced behind ; fifth
segment tapering, no projection above; sixth and seventh subequal, sixth ob-
conical, curved at base, more swollen above than in P. nebulosa. seventh more
regularly conical and not so large; eighth short and broad ; forceps stout, appen¬
dages reaching to base of claws.

One male, Sea Cliff) N. Y. Differs from P. nebulosa in shorter,
stouter form, more spotted wings, etc.

The species of Panorp'a known to me from the United States and
Canada may be separated by the following table. No species of the
genus have been recorded from west of the Rocky Mountains.

TRANS. AM. ENT. SOC. XXII.

SEPTEMBER, 1895.

316

NATHAN BANKS.

1— I

8.-

9.

10.—

Subcosta of fore wings running into costa near middle, plainly before pter¬
ostigma, no horn above on fifth segment of male . 2.

Subcosta of fore wings running into costa at the pterostigma . 5.

Wings black, with three narrow white bands . . • • -lugubris.

Wings not black . 3.

Large; wings yellow, with three complete black bands . ruin.

Smaller; wings hyaline, no complete bands . 4.

Radial vein curves inward to form pterostigma . nebulosus.

Radial vein nearly straight at pterostigma . a Hi n is.

Wings yellow, three complete brown bands . smierieaiia.

Wings more hyaline, two bands more or less interrupted . 6.

Male without horn above on fifth segment ; no complete hand on wings.

maculosa.

Male with a horn on fifth segment; at least one complete band to wings. .7.

Basal band nearly always complete, large species . suhfu rent a.

Basal band of two spots, smaller species . 8.

Wings flavescent, veins yellow . riil'esoens.

Wings barely or not flavescent, veins more or less blackish . 9.

Appendages of male not reaching to base of claw of forceps; veins mostly

blackish, basal spot very small . canadensis.

Male appendages reaching to base of claw of forceps . 10.

Veins black, basal spot very small ; second segment not produced behind.

conliiNa.

Veins partly yellowish, basal spot larger; second segment produced behind.

dehilis.

ISh.vacopliila purificsi nov. sp.— Length 10-12 mm. Black, with golden
hair on face and prothorax ; antennae black, slender, reaching to middle of wings.
Legs, except black femora, mostly testaceous, a few small spines on tibiae and
tarsi. Wings blackish, darkest on costa and stigma, a few scattered patches of
golden hair, and some golden hairs on the costal margin of hind wings at base ;
three whitish hyaline dots, one at arculus, one on the veinlet at end of thyridial
area, and one on the origin of divisialis; venation as in R. fuscula.

Two specimens, Olympia, Wash. (Trevor Kincaid).

Sftodcs a vara nov. sp. — Length 10 mm. Head yellowish, with gray and
white hair; palpi densely clothed with gray hair; antennae cinereous, tips of the
joints slightly fuscous. Wings gray hyaline, with gray hair, forming a long
fringe on hind margin; five fuscous dots as follows: one at forking of radial
sector, one at origin of divisialis, one at forking of divisialis, another at arculus,
and a fifth at end of lower branch of divisialis; three transverse gradate veinlets
fuscous; upper branch of radial sector forks at the first transverse veinlet ; cox*
and abdomen greenish. Legs pale yellowish, with white hairs.

One specimen, Sherbrooke, Canada, June (L’abbe P. A. Begin).
Related to S. miccins, lint easily separated by its more hairy palpi
and fuscous dots on the wings.

Philopotaimis aiiiericanus nov. sp. — Length 9-10 mm. Black, some
tawny hairs on head and some on second joint of palpus, also a few on the thorax.
Antenme wholly black, about as long as wings; three distinct ocelli; tips of
coxse pale; hind legs mostly testaceous, hind tibiae slightly curved and almost
twice as long as the femur; spurs 2-4-4. Wings black, more or less thickly
spotted with golden, generally following the veins; and four small white spots as
follows : a larger basally furcate one before the middle of the wing on the origin
of the divisialis, a transverse one at arculus, one at end of thyridial cell, and the
fourth at end of thyridial area; but three distinct transverse veinlets in fore
wing, one between branches of radial sector, another between radius and upper
branch of radial sector, the third in the anal region ; upper branch of radial
sector forks a little before tip, lower branch forks near base.

Many specimens from a stream near Sea Cliff, N. Y., in December,
March and April.

COLEOFTERA OF SOUTHWESTERN PENNSYLVANIA.

317

CATALOGUE OF THE COLEOFTERA OF SOUTHWEST¬
ERN PENNSYLVANIA, WITH NOTES
AND DESCRIPTIONS.

BY JOHN HAMILTON, M. D.,

Allegheny, Fa.

The title of this catalogue as first written was : “ The Coleoptera
of Allegheny, Pittsburgh and Environs,” a very large proportion
of all the Coleoptera on the list having been taken in the immediate
vicinity of these cities, especially Allegheny. But collections made
in many other parts of western Pennsylvania, the contiguous parts
of' West Virginia and southeastern Ohio, by myself and others, fur¬
nished few additional species, and by the insertion of those taken
near St. Vincent and in adjacent parts of the Alleghanies (Cambria
and Somerset Counties) by Prof. Jerome Schmitt and his assistants,
and those by Mr. Henry Klages near Jeannette (both places being-
in Westmoreland County, eastward from Pittsburgh) — all the Cole¬
optera known to me to have been taken in western Pennsylvania are
included, and this list therefore properly receives the more compre¬
hensive title.

Allegheny, which is destined in the course of time to become an
integral part of Pittsburgh, is situated on the right bank of the
Allegheny and Ohio Rivers, with a present frontage on the former
of two and on the latter of three miles, in latitude 40° 28', longitude
80° OP (Allegheny Observatory). The length of the day at Summer
solstice is fourteen hours, fifty-six minutes and fifty seconds. The
altitude above sea-level is between 699 feet, city datum, low water
level; and Mount Washington 1106 feet; Herron Hill, Pittsburgh,
1259 feet ; and Green Tree Hill, three and one-half miles north from
Allegheny City Hall, 1339 feet. The facies of the country for many
miles on all sides of the rivers is much the same as represented by
the city topographies, a series of elevations and abrupt depressions
intricately arranged.

The general topography of the region adjacent to the cities is
favorable to the existence of a rich and diversified Coleoptera fauna,
fhe Allegheny, arising in New J ork, flows southwardly till it is met
here by the Monongahela flowing northwardly from its source in

TRANS. AM. ENT. SOC. XXII.

OCTOBER, 1895.

318

JOHN HAMILTON, M. D.

extreme southwestern Pennsylvania, Maryland and West Virginia,
their union forming the Ohio, which has a northwestwardly flow of
twenty-five miles before trending to the southwest.

The Allegheny drains the southern part of western New7 York
and the western slope of the northern Alleghanies, while their cen¬
tral and southern portions in Pennsylvania, Maryland and West
Virginia are drained by the Monongahela and its tributaries.

The surrounding country is mainly broken and hilly, indented in
every direction by deep valleys, often having very abrupt sides, and
through which flow brooks or larger streams. The country is of a
similar character eastward to the Alleghanies, of which this region
may be considered part of the foot-hills. Thus, as might be expected
from the topography outlined, species from the north, from the south
and from the mountains all commingle here, as well as the forms
which come eastward through the basin of the Ohio.

Only a very small territory has been collected over ; more than
nineteen hundred of the species listed were taken on the right or
western bank of the Allegheny on a strip of ground about ten miles
long measuring from the present eastern boundary of Alleghany,
and one and one-fourth miles wide, and even this interrupted by five
populous boroughs — Millvale, Etna, Sharpsburgh, Aspinwall and
Hoboken. No collecting was done in Pittsburgh between the Alle¬
gheny and Monongahela. Messrs. William, Henry and Edward
Klages, collected extensively on the left or western side of the Mo¬
nongahela, as was done by myself to a less extent, but less than one
dozen species occurred there which were not eventually taken in the
Allegheny district. Species however rare in one region, were often
abundant in the other, and vice versa.

This list must, by no means, be considered as exhaustive of the
Coleoptera fauna of this locality. The Scydmsenidse, Trichopter-
ygidae, Pselaphidse, Aleocharini, Dytiscidse, Cryptophagidse, Lath-
ridikhe, etc., have scarcely been touched.

The future collector must not expect to take on the territory indi¬
cated all of these species; the ruthless hand of improvement is
rapidly destroying the primitive features of the locality, and even
now many of those must be sought elsewhere that were abundant
twenty years ago.

While the foregoing remarks apply to a very restricted locality it
must not be inferred that the species occurring there are equally
restricted, as in fact they are the common Coleoptera of southwestern

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

319

Pennsylvania, though there are probably few localities where so
many are concentrated. The higher mountainous regions will doubt¬
lessly furnish some very interesting things descending from the very
far northern fauna, and while few of the larger forms are likely to
add to this list, close collecting of small species will, without doubt,
greatly extend it ; the valuable collection notes furnished by P.
Jerome Schmitt in connection with the Scydmsenidse and Pselaphuke
show this, and will be appreciated by students of these families.

In th is list seventy-two families are represented ; of the other ten
some species of Stylopkhe, though as yet undetected, certainly occur,
while the remaining nine contain each but one genus, and altogether
but eighteen species.

The total number of species is 2153, of which 58 are some unde¬
termined and a few undescribed, and in addition there are 49 varie¬
ties belonging to species in the catalogue.

Whoever has occasion to compare this catalogue with that of
Europe, entitled: “ Catalogus Coleopterorum Europie, Caucasi et
Armenise rossicse,” 1891 (Cat. No. iv), will find several of the spe¬
cies common to both countries under different generic names. This
is sometimes occasioned by a division of a more comprehensive genus,
the new genus being used in one catalogue and not in the other.
Again, the compilers of this European catalogue seem to have in
part adopted an extreme rule of priority by which corrections in
orthography or etymology, made even by an author himself are
disregarded, and in case of synonyms, according to this scheme, the
first name in order of time, however inappropriate, must stand, even
when the publications are synchronous (perhaps on the same page)
the first name must have precedence. But inasmuch as the law of
common sense seems much more ancient than this construction of
the law of priority, only the emended names have been admitted to
this list. Finally, Geoffroy’s superannuated genera have been instated
in this European catalogue, but not admitted in this list for the rea¬
sons given by Dr. LeOonte in the “ Canadian Entomologist,” vi,
188, etc.

In the subjoined list of discrepancies the first name is that used

in this catalogue ; the following that in the European.

Bembidium Latreil. (emend) — Bembidion Latreil.

Plochionus Dej. (emend )—Plocionus Dej.

Tachys nanus — Tachyta, a division of Tachys.

Silpha surinamensis — Asbolus ) , , , .

0., , , . both untenable (Horn .

Silpha lapponica —Pseudopeltata J

TRANS. AM. ENT. SOC. XXII.

OCTOBER. 1895.

320

JOHN HAMILTON, M. D.

Ocypus ater — Tasgius, a division of Ocypus.

Xantholinus fulgidus — Eulissus, a division.

Cilea — Leucoparyphus, more recent (Horn).

Ccenoscelis and Typhoea in Henshaw’s List (1883) are misprints.

Ips Fab. 4-guttatus — Glisrochilm , a division of Ips Fab., but Ips Fab. is sup¬
pressed, and Ips DeG. displaces Tomicus Latreille in the Scolytidse.
Tenebrioides Filler (Pall, is probably a misprint) — Tenebroides Piller.

Byrrhus murinus — Porcinolus, a division of Byrrlius Linn., but Byrrhus Linn.
is suppressed, and Byrrhus Geoff, displaces Sitodrepa, Nicobium, Hadrobreg-
mus, Anobium, etc., in the Ptinid^:.

Dascyi.lid.e — Dascillidse, an entomological error.

Corvmbites and Ludius — Ludius is the older name, and on account of using
a little different scheme of classification the species of the two genera are
not separated in Cat. No iv.

Eros — Dictyoptera Latrl. X Cat, iv, but Dictyoptera LatrieUe = Calochromus Guer.
Dictyoptera Latrl. J Cat. iv, and Calochromus are not identical, therefore
Eros must stand.

Sitodrepa — Byrrhus Geoff.

Orsodacna Latrl. (emend.) — Orsodacne.

Crepidodera ruflpes — Derocrepis \

C. helixines — Chalcoides Genera of doubtful validity (Horn).

C. modeeri — Hippuriphila J

Biutchid.e — Mylabridse Geoff.

Bruchus — Mylabris Geoff.

Cistela Fab. — Gonodera Muls., a more recent name, but Cistela Fab. is suppressed
and Cistela Geoff, displaces Cytilus iu the BviuiiirD.E.

Hypulus Payk. — Dircsea, a synonym of Serropalpus. Hypulus J Cat. iv, is Mys-
taxis Kug. (Horn).

Phytonomus — Hypera, a division of Phytonomus.

The genera which concern this catalogue are the only ones dis¬
cussed. The discrepancies between Henshaw’s Lists (1885, 1895)
and the European are numerous, but mostly of the above character,
and before making any changes in the American the reasons should
be thoroughly investigated.

* Denotes species taken by P. Jerome Schmitt and assistants near
St. Vincent Monastery, and in the Alleghanies, which did not occur
here.

X Species taken near Jeannette by Mr. Henry Ivlages.

CICINDELID^E.

Cicindela unipunctata Fab.

Cicindela vulgaris Say.

sexguttata Fab.

repanda Dej.

var. patruela Dej.
purpurea Oliv.

var. 12-guttata Dej.
punctulata Fab.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

321

CARABIDJE.

Omophron americanum Dej.

Cychrus lecontei Dej.

canadensis Chd.

% elevatus Fah.
viduus Dej.
ridingsii Bland.
andrewsii Harr.

* Noxnaretus imperfectus Horn.

Carabus serratus Say.

limbatus Say.
vinctus Web.
sylvosus Say.

Calosoma externum Say.

scrutator Fab.
wilcoxi Lee.
frigidum Kirby.
caiidum Fab.

Elaphrus cicatricosus Lee.
ruscarius Say.

Notiophilus seneus Herbst.

semistriatus Say.
sibiricus Mots.

Nebria pallipes Say.

Passimachus depressus Fab.

Scarites subterraneus Fab.

Dyschirius nigriceps Lee.

globulosus Say.
hsemorrhoidalis Dej.
sphsericollis Say.
hispidus Lee.

Clivina impressifrons Lee.
rufa Lee.
americana Dej.
bipustulata Fab.

Schizogenius lineolatus Say.

ampliibius Hald.

Ardistomis viridis Say.

Panagteus fasciatus Say.

Bembidium punctatostriatum Say.
insequale Say.
nitidulum |j Dej.
americanum Dej.
chalceum Dej.
antiquum Dej.
nigrum Say.
simplex Lee.
guexii Chaud.
ustulatum Linn.
picipes Kirby.

Bembidium postremum Say.

dentellum Thunb.
areuatum Lee.
postfasciatum Ham.
patruele Dej.
variegatum Say.
intermedium Kirby.
versicolor Lee.
sulcatum Lee.
affine Say.
assimile Gyll.

4-maculatum Linn.
pedicellatum Lee.
lsevigatum Say.

Tacliys proximus Say.
scitulus Lee.
coruscus Lee.
he vis Say.
nanus Gyll.
llavicauda Say.
vivax Lee.
capax Lee.
xanthopus Dej.
incurvus Say.
nebulosus Chaud.
two sp. undetermined.

Pericompsus ephippiatus Say.

Patrobus longicornis Say.

Myas coracinus Say.
cyanescens Dej.

Pterostichus adoxus Say.

rostratus Newm.
viviuctus Lee.
unicolor Say.

apalachius Lee. ms., Horn.

diliyendus J Lee.
honestus Say.
obscurus Say.
lachrymosus Newm.
coriacinus Newm.
stygicus Say.
relictus Newm.
mcestus Say.
sculpt us Lee.
hamiltoni Horn
sayi Bridle
lucu bland us Say.
caudicalis Say.
luctuosus Dej.

TRANS. AM. ENT. SOC. XXII.

(41)

OCTOBER, 1895.

322

JOHN HAMILTON, M. D.

Pterostichus covvinus Dej.

tartaricus Say.
purpuratus Lee.
mutus Say.
erythropus Dej.
patruelis Dej.
femoralis Kirby.

Evartlirus sigillatus Say.
sodalis Lee.

Amara avida Say.

fulvipes || Puts.
exarata Dej.
angustata Say.
impuncticollis Say.
basillai-is Say.
cupreolata Puts.
fallax Lee.
obesa Say.
rubrica Hold.
musculus Say.

Diplochila major Lee.

Dicselus dilatatus Say.

var. dejeanii Dej.
purpuratus Bon.
sculptilis Say.
ovalis Lee.
elongatus Bon.
ambiguus Laf.
teter Bon.
politus Dej.

Badister notatus Hold.

pulchellus Lee.

('alatlius gregarius Say.

impunetatus Say.

X Platynus caudatus Lee.

hypolithus Say.
angustatus Dej.
decens Say.
sinuatus Dej.
refiexus Lee.
parmarginatus Ham.
extensicollis Say.
decorus Say.
ancliomenoides Rand.
J obseprus Hbst.

pusillus Lee.
atratus Lee.
melanarius Dej.
cupripennis Say.
excavatus Dej.

Platynus ferreus Hold.

nutans Say.
octopunctatus Fab.
placidus Say.
bogemanni Gyll.

obsoletus Say.
4-punctatus DeG.
geruginosus Dej.
crenistriatus Lee.
punctipennis Say.
retractus Lee.
picipennis Kirby.

Olisthopus parmatus Say.

At ran us pubescens Dej.

X Leptotracbelus dorsalis Fab.

Casnonia pennsylvanioa Linn.

Galerita janus Fab.

Tetragonoderus intersectus Hald.

Lebia grandis Hentz
atriventris Say.
viridis Say.
pumila Dej.
viridipennis Dej.
lobulata Lee.
ornata Say.
fuseata Dej.
scapularis Dej.
furcata Lee.
bivittata Fab.

Goptodera gerata Dej.

Drominus piceus Dej.

Apristus cordicollis Lee.

Blechrus pusio Lee.

Metabletus americanus Dej.

Plochionus timidus Hald.

Pinacodera limbata Dej.

platicollis Say.

Cymindis americana Dej.
pilosa Say.
neglecta Hold.

Apenes lucid ula Dej.
sinuata Say.

Braetiinus americanus Lee.

?perplexus Dej.

? alternans Dej.

? cordicollis Dej.

Chlsenius erythropus Germ.
sericeus Forst
laticollis Say.
diffinis Chaud.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA. 328

Chlsenius platyderus Chanel.
sestivus Say.
prasinus Dej.
leucoscelis Chev.
nemoralis Say.
tricolor Dej.
pennsylvanicus Say.
impunctifrons Say.

* niger Rand.
tomentosus Say. •

Anomoglossus emarginatus Say.

pusillus Say.

Brachylobus litbophilus Say.

Lachnocrepis parallel us Say.

Oodes amaroides Dej.

G copious incrassatus Dej.

Cratacanthus dubius Beauv.

Agonoderus lineola Fab.

pallipes Fab.

var. coma Fab.
partiarius Say.
pauperculus Dej.

Gynandropus hylacis Say.

Harpalus dichrous Dej.

vulpeculus Say.
autumnalis Say.
caliginosus Fab.
faunus Say.
penusylvanicus DeG.
compar Lee.

var. erytbropus Dej.
lougior Kirby,
longicollis Lee.
megacephalus Lee.
spadiceus Dej.
fallax Lee.
herbivagus Say.

Harpalus viduus Lee.

basilaris Kirby.

Selenophorus palliatus Fab.

gagatinus Dej.
opaliuus Lee.
ellipticus Dej.

Stenolophus fuliginosus Dej.

plebej us Dej.
humidus Ham.
c.onjunctus Say.

var. with black thorax,
ochropezus Say.
alternaus Lee.

Acupalpus carus Lee.

Bradycellus rupestris Say.

Tachycellus kirbyi Horn.

atriruedius Say.
badiipennis Hald.

Auisodactylus rusticus Say.

carbouarius Say.
interpunctatus Kirby.
agricola Say.
harrisii Lee.
nigerrixnus Dej.
nigrita Dej.
melanopus Hald.
discoideus Dej.
baltimorensis Say.
piceus Lee.
terminatus Say.
agilis Dej.
nitidipennis Lee.
coenus Lee.
lugubris Dej.
sericeus Harr.
interstitialis Say.

Haliplus ruficollis DeG.

HALIPLID^E.

Cnemidotus 12-punctatus Say.

Hydrocanthus iricolor Say.
Laccophilus maculosus Germ.

fascia tus Aube.
Hydrovatus pustulatus Mels.
Desmopachria convexa Aube.
Bidessus affiuis Say.
Hygrotus iusequalis Fab.
var. punctatus Say.

DYTISCIDJE.

Ccelambus nubilus Lee.

impressopunctatus Sch.
Deronectes griseostriatus DeG.
Hydroporus conciunus var. pulcker Lee.
uudulatus Say.
vitiosus Lee.
niger Say.
modestus Aube.

TRANS. AM. ENT. SOC. XXII.

OCTOBER, 1895.

324

JOHN HAMILTON, M. D.

Hydroporusstagualis G. & //.
oblitus Aube.
ohlongus Steph.
Ilybius higuttatus Germ.,
Coptotomus interrogates Fab.
Copelatus glyphicus Say.
Agabus obtusatus Say.
stagninus Say.
punctatus Mels.

Gyriuus minutus Fab.

ventralis Kirby.
? aquiris Lee.

Agabus tfe.niolatus Harr.
Colymbetes sculptilis Harr.
Dytiscus fasciventris Say.
Acilius semisulcatus Aube.

fraternus Harr.
Thermonectes basilaris Harr.
Graphoderes liberus Say.

cinereus Linn.
Cybister fimbriolatus Say.

GYRINID.E.

Gyriuus aualis Say.

Dineutes discolor Aube.

americanus IJnn.

HYDROPHILIDJE.

Helopliorus lineatus Say.

inquinatus Mann.

Hydrochus scabratus Mills.

subcupreus Rand.

* Ochthebius benefossus Lee.

* foveicollis Lee.

Hydrophilus triangularis Say.

ovatus G. & H.

Tropisternus lateralis Fab.

dorsalis Brulle.
nimbatm Say.
glaber Ilbst.
striolatus Lee.

Hydrocharis obtusatus Say.

Berosus striatus Say.

Lacobius agilis Rand.

Philydrus nebulosus Say.
cinctus Say.
bamiltoni Horn.

Cymbiodyta fimbriata Mels.

blanc.hardi Horn.

Hydrobius fuscipes Linn.

globosus Say.

Creniphilus *monticola Horn.

despectus Lee.
subcupreus Say.
digestus Lee.

Cercyon unipunctatus Linn.
ocellatus Say.
prsetextatus Say.
indistinctus Horn.
analis PayJc.
hsemorrhoidalis Fab.
pygmaeus III.
melanocephalus Linn.
lugubris Payk.
granarius Er.
navicularris Lee.
pubeseens Lee.

Cryptopleurum minutum Fab.

vagans Lee.

LEPTINID^E.

Leptinus testaceus Mull.

SILPHID^l.

Necrophorus orbicollis Say.

americanus Oliv.
marginatus Fab.
pustulatus Hersh.
tomentosus Web.
Silpha surinamensis Fab.
j lapponica Hbst.
inaequalis Fab.

Silpha noveboracensis Forst.

americana Linn.
Pinodytes cryptophagoides Man
bamiltoni Horn.
Choleva simplex Say.

basillaris Say.
clavicornis Lee.
terminans Lee.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

325

Prionochseta opaca Say.
Ptomophagus eonsobrinus Lee.

parasitus Lee.

* brachyderus Lee.

* Colon sp.

Colenis impunctata Lee.

Liodes globosa Lee.

Liodes polita Lee.

discolor Mels.
basal is Lee.
obsoleta Horn.

Agathidium oniscoides Beauv.

exiguum Mels.
politum Lee.

SCYDMiENIDiE.

This family and the Pselaphidse have been collected by P. Jerome
Schmitt, of St. Vincent College, Westmoreland County ; those taken
here are marked with a f.

Euthiodes cristata Brend.
f Cepbennium corporosum Lee.
f Choleras zimmermauni Schaum.
Eumicrus motschulskii Lee.
caseyi Brend.
n. s.

f Brachycepsis subpunctatus Lee.

maria1 Lee.

II. s.

cribrarius Lee.
f Sc.ydmsenus fossiger Lee.

Sc.ydmsenus f capillosus Lee.

f basalis Lee.
hirtellus Lee.
analis Lee.

brevicornis Lee. {Say).
f clavatus Lee.
f clavipes Lee. {Say).
f lecontei Schauf.
fulvus Lee.
spec, undetermined.

PSEL APHID A3.

Rafonus tolulse Lee.

Rliexius insculptus Lee.

schmitti Brend.

Rhexidius canaliculatus Lee.

trogasteroides Brend.

Trimiuin parvulum Lee.

thoracicum Brend.
sp.

Euplectus crinitus Lee.

interruptus Lee.
con linens Lee.
elongatus Brend.
pertenuis Casey.
leviceps Casey.
sp.

Trimioplectus obsoletus Brend.

arcuatus ? Lee.
ruficeps Lee.

Aotium sp.

Eutyphlus similis Lee.

Thesium cavifrons Lee.

Arianops amblyoponica Brend.

Batrisus scliauniii Aube.
riparius Say.

TRANS. AM. ENT. SOC. XXII.

Batrisus scabriceps Lee.

f bistriatus Lee.
frontalis Lee.
globosus Lee.
virginise Casey.
furcatus Brend.
foveicornis Casey.
punctifrons Casey.

• denticollis Casey.
striatus Lee.

Bryaxis divergens Lee.
radians Lee.
rubicunda Aube.
perforata Brend.
n. sp.

semirugosa Brend.

Rybaxis conjuncta Lee.
f Decarthron abnorme Lee.

n. s. [Brend.

Bythinus (stibgeu. Bythinus) carinatus
(subgen. Machxrites) tychoi-
Tychus minor Lee. ? var. [des Brend.

testaceus Casey.
f Ctenistes piceus Lee.

OCTOBER, 1895.

326

JOHN HAMILTON, M. I).

Ctenistes consobrinus Lee.
f Ceophyllus raonilis Lee.
f Tmesipborus costalis Lee.

carinatus Say.

f Oedius ziegleri Lee.

spinosus Lee.
f Tyrus bumeralis Aube.
Adranes coecus Lee.

STAPHYLINIDiE.

The Aleocharini are mostly uncollected.

Falagria cingulata Lee.
dissecta Er.
n. s.

Hoplandria lateralis Mels.
n. s.

Homalota trimaculata Er.

pedicularis Mels.
ambigua Er.

Amischa analis Grav.

Colpodota lividipermis Mann.
Lomecbusa cava Lee.

Tachyusa cavicollis Lee.

gracillima Lee.

* Myrruedonia schmitti n. s.

* rudis Lee.
Aleocbara lata Grav.

brachypterus Fourc.
bimaculata Grav.
uitida Grav.
two sp. undetermined.
Oxypoda sagulata Er.

Bolitochara picta Fauv.

blanchardi Casey.
Gyrophsena vinula Er.

flavicornis Mels.
socia Er.

Diuopsis americana Kraatz.
Acylopborus flavicollis Saehse.
pronus Er.

Heterotbops fumigatus Lee.
Quedius fulgidus Fab.

peregrinus Grav.
capucinus Grav.
lgevigatus Gy 11.
molocbinus Grav.
Listotropbus cingulatus Grav.

* capitatus Bland.
Creophilus maxillosus Linn. var.
Stapbylinus badipes Lee.

vulpinus Nord.
maculosus Grav.
mysticus Er.

Stapbylinus comes Lee.

cinnamopterus Grav.
violaeeus Grav.

Ocypus ater Grav.

Belonuchus formosus Grav.

Philonthus politus Linn.

seneus X plur. auct.
furvus Nord.
laetulus Say.
asper Horn.
bepaticus Er.
palliatus Grav.
debilis Grav.
varians Payk.
thoracicus Germ.
fusiformis Mels.
micans Grav.
lomatus Er.
brunneus Grav.
cyanipennis Fab.
blandus Grav.
quediiuus Horn.
sordidus Grav.
nigritulus Grav.
micropthalmus Horn.
apicalis Say.
viridanus Horn.
confertus Lee.

Actobius cinerascens Grav.

fraterculus Horn.
sobrinus Er.
parcus Horn.
psederoides Lee.
jocosus Horn.

Xantbolinus cephalus Say.

fulgidus Fab.
obsidianus Mels.
emmesus Grav.
obscurus Er.
var. (small).

Leptacinus longicollis Lee.

Baptolinus longiceps Fauv.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

327

Stenus bipunctatus Er. not Casey.
flavicomis Er.
annularis Er.
callosus Er.
punctatus Er.

several spec, undetermined.

Eusesthetus americanus Er.

Edaphus nitidus Lee.

Stictocranius puncticeps Lee.

Cryptobium badium Grav.

bicolor Grav.
var. melanocephalum Er.
pallipes Grav.
latebricola Nord.
cribratum Lee.

Lathrobium grande Lee.

terminatum Grav.
punetulatum Lee.
angulare Lee.
bicolor Lee.
armatum Say.
longiusculum Grav.
collare Er.
an ale Lee.

Stilicus opaculus Lee.

angularis Lee.
dentatus Say.
biarmatus Lee.

Trachysectus confluens Say.

Anderocharis corticina Grav.

Psederus littorarius Grav.

Sunius prolixus Er.

binotatus Say.
longiusculus Mann.

Pinopliilus latipes Grav.

Tacbinus memnonius Grav.
repandus Horn.
tlavipennis Dej.
luridus Er.
fimbriatus Grav.
limbatus Mels.
fumipennis Say.
pallipes Grav.
nitiduloides Horn.

Tachyporus elegans Horn.

jocosus Say.
chrysomelinus Linn.
nanus Er.
nitidulus Fab.

Cilea silphoides Linn.

Erchomus ventriculus Say.

Conurus littoreus Linn.
crassus Grav.
pubescens Paylc.
knoxii Lee.
opicus Say.
scriptus Lee.

Boletobius niger Grav.

dimidiatus Er.
intrusus Horn.
cincticollis Say.
anticus Horn.
angularis Sachse.
exoletus Er.
cinctus Gnw.
var. gentilis Lee.

Bryoporus rufescens Lee.

Mycetoporus hum id us Say.

Olisthserus substriatus Gyll.

Megalops cselatus Grav.

Oxyporus femoralis Grav.
major Grav.
stygicus Say.
vittatus Grav.
lateralis Grav.
occipitalis Fauv.
lepidus Lee.
quinquemaculatus Lee.

* var. with black head.

Osorius latipes Grav.

Bledius semiferrugineus Lee.
annularis Lee.
stabilis Casey.
emarginatus Say.

Platystethus americanus Er.

Oxytelus rugosus Grav.

pennsylvanicus Er.
suspectus Casey,
nitidulus Lee.
insignitus Grav.

* placusinus Lee.
exiguus Er.

Trogopklceus quadripunctatus Say.
spretus Casey.
congener Casey.
incertus Casey.
decoloratus Casey.
uniformis Lee.
memnonius Er.

Apocellus sphsericollis Say.

TEANS. AM. ENT. SOC. XXII.

OCTOBER. 1895.

JOHN HAMILTON, M. D.

328

Apocellus bicolor Fauv. ? Casey.
Tbinobius sp. .02 inch. long.
Geodromicus verticalis Say.

strictus Fauv.
-Lesteva pallipes Lee.

Arpedium angulare Fauv.

cribratum Fauv.
Trigonodemus striatus Lee.
Lathrimseum sordidum Er.
Olophrum obtectnm Er.

® Homalium foraminosum Maek.

® flavidum n. s.
liumerosum Fauv.

Homalium punctiventre Fauv.
rufipes Fauv.

Anthobium convexum Fauv.

liornii Fauv.
Protinus atomarius Er.

* Lispinus tenellus Er.
Glyptoma costale Er.

Triga picipennis Lee.

Eleusis pallida Lee.

nigrella Lee.

Siagonium americanum Mels.
punctatum Lee.

• TRICHOPTERYGIDHi!.

Many species were not collected.

Nanosella fungi Lee. Tricliopteryx haldemanni Lee.

* Limulodes paradoxus Math.

SCAPHIDIIDJE.

Not collected extensively.

Scaphidium 4-guttatum Say.

var. piceum Mels.
Bmocera apicalis Lee.

Scaphisoma convexum Say.

Phalacrus politus Mels.

sp. not determined.
Olibrus pallipes Say.

striatulus Lee.

Sauciuin fasciatum Say.

lunatum Lee.

Arthrolips marginicollis Lee.
Corylophodes truncatus Lee.

Scaphisoma suturale Lee.

terminatum Mels.
pusillum Lee.

Olibrus semistriatus Lee.

Stilbus apicalis Mels.
nitidus Mels.

several unnamed Phalacridse.

Sericoderus flavidus Lee.

obscurus Lee.
Orthoperus glaber Lee.

PHALACRIDA1.

CORYLOPH1DAE.

COCCINELLID^E.

Megilla maculata DeG.
Hippodamia glacialis Fab.

15-maculata Muls.
convergens Guer.
13-punctata Linn.
parenthesis Say.
Coccinella affinis Rand.

9-uotata Herbst.
sanguinea Linn.

Adalia bipunctata Linn.

Mysia pullata Say.

Anatis ocellata Linn.

15-pun ctata Oliv.
Psyllobora 20-mac.ulata Say.
Chilocorus bivulnerus Muls.
Exochomus marginipennis Lee
Cryptognatha jmsilla Lee.
Brachyacantha ursina Fab.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

329

Brachyacantha 4-punctata Mels.
Hyperaspis fimbriolata Mels.

undulata Say.
discreta Lee.
signata Oliv.
proba Say.
bigeminata Rand.
Scymnus terminatus Say.

flavifrons Mels.

Scymnus americanus Muls.
fra tern us Lee.
hsemorrhous Lee.
brullei Muls.
collaris Lee.
tenebrosus Muls.
punctum Lee.

Epilachna borealis Fab.

BNDOMYCHIDA1.

Symbiotes ulkei Crotch.

minor Crotch.
Mycetsea hirta Marsh.

Rhanis unicolor Zieg.
Phymaphora pulcliella Newm.

Lycoperdina ferruginea Lee.
Aphorista vittafa Fab.
Mycetina perpulchra Newm.

® testacea Zieg.
Endomychus biguttatus Say.

Languria bi color Fab.

mozardi Latrl.
trifasciata Say.
lecontei Crotch.
Acropteroxys gracilis Newm.
Plceosoma punctatum Lee.
Dacne 4-maculata Say.
Megalodacne fasciata Fab.

heros Say.

Ischyrus 4-punctatus Oliv.

EROTYLIDiE.

Mycotretus sanguinipennis Say.
pulcbra Say.

Tritoma humeralis Fab.

var. d, entirely black above,
biguttata Say.
mimetica Crotch.
angulata Say.
unicolor Say.
thoracica Say.
flavicollis Lacor.

COLYDIID^l.

Synchita fuliginosa Mels.

parvula Guer.

Cicones marginalis Mels.

Ditoma 4-guttata Say.

Coxelus guttulatus Lee.
Aulonium parallelopipedum Say.
Oolydium lineola Say.

Penthelispa hsematodes Fab.

* reflexa Say.

Pycnomerus sulcicollis Lee.
Bothrideres geminatus Say.
Cerylon castaneum Say.
Philothermus glabriculus Lee.
Mychocerus depressus Lee.

Rhysodes exaratus Serv.

RHYSODID^E.

Clinidium sculptile Newm.

CUCU JID^l.

Silvanus surinamensis Linn.
bidentatus Fab.
planatus Germ.
imbellis Lee.
advena Watl.

Nausibius clavioornis Rug.

dentatus Marsh.
Catogenus rufus Fab.
Pediacus depressus Hbst.
Cucujus clavipes Fab.

Lsemophloeus biguttatus Say.

fasciatus Mels.
convexulus Lee.
adustus Lee.
testaceus Fab.
rotundicollis Casey.
Dendrophagus cygnsei Mann.
Brontes dubius Fab.
debilis Lee.

Telephanus velox Hald.

TRANS. AM. ENT. SOC. XXII.

(42)

OCTOBER, 1895.

JOHN HAMILTON, M. D.

330

CRYPTOPHAGIDiE.

Telmatophilus americanus Lee.
Loberus impressus Lee.
Tomarus pulchellus Lee.
Antherophagus ochraceus Mels.
Henotieus serratus Gyll.
Cryptopbagus croceus Zimin.

Cryptophagus fungicola Zimm.

two species not determined.
Csenoscelis ferruginea Sahib.
Atomaria ochracea Zimin.

ephippiata Zimm.
humeralis n. s.

MYCETOPHAGID.E.

Myeetophagus punctatus Say.

flexuosus Say.
pluripunctatus Lee.
obsoletus Mels.
Triphyllus humeralis Kirby.
Litargus sexpunctatus Say.

Litargus tetraspilotus Lee.
didesmus Say.
nebulosus Lee.
Typluea fumata Linn.
Diploccelus brnnneus Lee.

Byturus unicolor Say.

Dermestes caninus Germ.

var. rattus Lee.
pulcher Lee.
lardarius Linn.
vulpinus Fab.

Attagenus piceus Oliv.

pellio Linn.

Deartlirus longulus Lee.

Hololepta lucida Lee.

fossu laris Say.

Hister planipes Lee.

harrisii Kirby.
merdarius Hoffm.
interruptus Beauv.
marginicollis Lee.
cognatus Lee.
feedatus Lee.
abbreviatus Fab.
civilis Lee.
depurator Say.
furtivus Lee.
servus Er.
bimaculatus Linn.
sedecimstriatus Say.
americanus Payk.
subrotund us Say.
vernus Say.
carolinus Payk.
lecontei Mars.
aurelianus Horn.
parallelus Say.
coarctatus Lee.

DERMESTID^E.

Trogoderma ornatum Say.
Anthrenus verbasci Linn,
varius Fab.
museorum Linn,
eastanese Mels.
Cryptorhopalum triste Lee.
Orphilus niger Rossi.

glabratus Fab.

HISTERID.E.

Hister * basalis Lee.

Epierus pulicarius Er.

Tribalus americanus Lee.
Hetierius brunnipennis Rand.
Onthophilus alternatus Say.

var. nodatus Lee.
Dendrophilus punctulatus Say.
Paromalus sequalis Say.

estriatus Lee.
conjunctus Say.
bistriatus Er.
semin ulum Er.
Carcinops 14-striatus Steph.
Saprinus rotuudatus Kug.
assimilis Payk.

. • fraternus Say.
fitchii Mars.

Plegaderus transversus Say.
Teretrius americanus Lee.
Bacanius tantillus Lee.

Acritus exiguus Er.

Aeletes politus Lee.

simplex Say.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

331

NITIDULID^E.

Brachypterns urticse Fab.

Cereus abdominalis Er.
pennatus Murr.

Carpophilus hemipterus Linn.

mutilatus Er.
dimidiatus Fab.
niger Say.
marginatus Er.
corticinus Er.
brachypterns Say.

Colastus morio Er.

semitectus Say.
unicolor Say.
truucatus Rand.

Conotelus obscurus Er.

Epursea helvola Er.
rufa Say.
erichsonii Reit.
rufida Mels.
avara Rand.
truncatella Mann.
labilis Er.

Nitidula bipunctata Linn.
rufipes Linn.
ziczac Say.

Stelidota geminata Say.

Stelidota octoinaculata Say.
Prometopia 6-maculata Say.
Phenolia grossa Fab.

Omosita colon Linn.

Soronia undulata Say.

substriata Ham.
Perthalycra murrayi Horn.
Pocadius helvolus Er.

Meligethes mutatus Harold.
Oxycnemus histrina Lee.
Amphicrossus ciliatus Oliv.
Pallodes pallidus Beauv.
silaceus Er.

Cychramus adustus Er.
Cryptarcha ampla Er.

concinna Mels.

Ips obtusus Say.

quadriguttatus Fab. var.
fasciatus Oliv. and variations,
sanguinolentus Oliv.
confluentus Say.

Rhizophagus cylindricus Lee.

bipunctatus Say.
remotus Lee.
minutus Mann.

Stephostethus liratus Lee.
Enicmus minutus Linn.
Latridius opaculus Lee.

filiform is Gyll.
Corticaria elongata Gyll.

LATRIDID^l.

Corticaria cavicollis Mann.
Melanopthalma distinguenda Commol.
puniila Mels
pieta Lee.

several species not collected.

TROGOSITIDiE.

Neniosoma cylindricum Lee.
Alindria cylindrica Sen.
Tenebroides mauritanicus Linn.

corticalis Mels.

var. dubius Mels.
nanus Mels.

Tenebroides americanus Kirby.

eastaneus Mels,
bimaculatus Mels.
* Ostoma ferrugineum Linn.
Grynocharis 4-lineata Mels.
Thymalus fulgidus Er.

Monotonia americana Aube.

lougicollis Gyll.
Europs pallipennis Lee.

MONOTOMID A3.

Bactridium ephippigerum Guer.
striolatum Reit.
cavicolle Horn.

DERODONTID^E.

Derodontus maculatus Mels.

TRANS. AM. ENT. SOC. XXII.

OCTOBER, 1895.

JOHN HAMILTON, M. D.

332

Xosodendron unicolor Say.
® Byrrhus geminatus Say.

BYRRHIDiE.

* Byrrhus murinus Fab.

* Linmichus punctatus Lee.

PARNIPJE.

Not collected exhaustively.

: Psephenus lecontei Lee.
Dry ops litliophilus Germ.

fastigiatus Say.
Elmis divergens Lee.

quadrinotatus Say.

Stenelmis crenatus Say.

vittipennis Zimm.
Macronychus glabratus Say.
Ancyronyx variegatus Germ.

HETEROCERIDiE.

Heterocerus ventralis Mels. Heterocerus schwarzi Horn.

undatus Mels. col laris Kies.

var. rnollinus Kies. pusillus Say.

brunneus Mels.

DASCYLLID^E.

Eurypogon niger Mels.
Anchytarsus bicolor Mels.
Ptylodactyla serricollis Say.
Eucinetus testaceus Lee.

morio Lee.
Ectropia nervosa Mels.
Prionocyphon discoideus Say.

limbatus Lee.

Helodes pulchella Goer.

thoracica Oner.
Scirtes orbiculatus Fab.
Cyplion ruficollis Say.

obscurus Gner.
col laris Guer.
variabilis 'Thumb.
n. s.

RHIPICERIDiE.

Zenoa picea Beam. Sandalus petrophya Knock.

ELATERIDiE.

Tharops ruficornis Say.
Deltometopus amcenicornis Say.

rufipes Mels.

Dromseolus harringtoni Horn.

cylindricollis Say.
striatus Lee.

Fornax badius Mels.
horni Bonv.
calceatus Say.
orchesid.es Newm.
bicolor Mels.

Micro rliagus pectinatus Lee.

triangularis Say.
Entomopthalmus rufiolus Lee.
Nematodes atropos Say.

penetrans Lee.

\ Eucnemide sp. or n. s.

Ph logon heterocerus Say.
Cerophytum pulsator Hold.
Perothops mucida Gyll.
Adelocera impressicollis Say.
marmorata Fab.
discoidea Web.
avita Say.
obtecta Say.

Alaus oculattis Linn.
Cardiophorus cardisce Say.

convexus Say.
gagates Er.
convexulus Lee.
Horistonotus curiatus Say.
Oyptohypnus abbreviatus Say.
Hypnoidus striatulus Lee.

obliquatulus Say.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

Oedostethus femoralis Lee.

Monocrepidius lividus DeG.

vespertinus Fab.
auritus Herbst.
bellus Say.

Dicrepidius palmatus Cand.

Elater hepaticus Mels.

man ip u laris Cand.
mixtus Herbst.
linteus Say.
discoideus Fab.
vitiosus Lee.
sayi Lee.
impolitus Mels.
socer Lee.
rubricollis Herbst.
semicinctus Rand.
militaris Harris.
luctuosus Lee.
nigricans Germ.
rubricus Say.
collaris Say.

xanthomus Germ. [Germ.

apicatus var. phcenicopterus
obliquus Say.

var. areolatus Say.
pusio Germ.
u. s.

Drasterius elegans Fab.

Megapenthes limbalis Herbst.

Ludius attenuatus Say.
abruptus Say.

Agriotes mancus Say.

insanus Cand.
pubesceus Mels.
oblongicollis Mels.

Dolopius lateralis Esch.

Betarmon bigeminatus Rand.

Glyphonyx recticollis Say.

testaceus Mels.

Melanotus corticinus Say.

decuman us Er.
angustatus Er.
trapezoideus Lee.
castanipes Lee.
fissilis Say.
communis Gyll.
exuberans Lee.

TRANS. AM. ENT. SOC. XXII.

Melanotus parumpunctatus Mels.
verberans Lee.
pertinax Say.
americanus Herbst.
gradatus Lee.
Sagittarius Lee.

Limonius auripilus Say.
aurifer Lee.
griseus Beam.
interstitialis Mels.
plebeius Say.
confusus Lee.
quercinus Say.
basiliaris Say.
agonus Say.
ornatipennis Lee.
definitus Zieg.
nimbatus Say.

Campylus denticornis Kirby.

* productus Rand.

Athous brightwelli Kirby.
acanthus Say.

var. maculicollis Lee.
cucullatus Say.
scapularis Say.
equestris Lee.

* Leptoschema discalceatum Say. .

Oestodes tenuicollis Rand.

Sericosomus viridanus Say.

silaceus Say.

Corymbites cylindriformis Herbst.
rufipes Bland.
pyrrhos Herbst.
tarsalis Mels.
elongaticollis Ham.
sulcic.ollis Say.
gethiops Herbst.
hamatus»S«^.
hieroglyphicus Say.
inflatus Say.
rotundicollis Say.

Asaphes indistinctus Lee.
decoloratus Say.

var. sereus Mels.
memnonius Herbst.
bilobatus Say.

Melanactes piceus DeG.

Cebrio bicolor Fab.

OCTOBER, 1895.

JOHN HAMILTON, M. D.

334

THROSCIDiE.

Drapetes geminatus Say. Throacus chevrolati Bonv.

Aulonothroscus constrictor Say.

BUPRESTIDiE.

Chalcophora virginiensis Drury.
fortis Lee.
campestris Say.

Dicerca divaricata Say.

pugiouata Germ.

Iurida Fab.
lepida Lee.
spreta Gory.
tuberculata Chev.

Pcecilonota cyanipennis Say.

Buprestis rufipes Oliv.

fasciata Fab.
striata Fab.
ultramarina Say.

Cinyra gracilipes Mels.

Melanophila acuminata DeG.

appendical ata Fab.
longipes Say.
fulvoguttata Gory.

Anthaxia viridipennis Harris.
viridicornis Say.
quercata Fab.

* tlavimana Gory.

Cbrysobothris femorata Fab.

floricola Gory.
3-uervia Kirby.

Cbrysobothris 6-signata Say.
Aemseodera pulchella Herbst.

culta Web.

Ptosima gibbicollis Say.
Mastogenius subeyaneus Lee.
Eupristocerus cogitans Web.
Agrilus otiosus Say.

arcuatus Say.

var. coryli Horn,
vittatocollis Rand.
bilineatus Web.
granulatus Say.
acutipennis Mann.
politus Say.
fallax Say.

obsoletoguttatus Gory.
subcinctus Gory.
lecontei Saunders.
egenus Gory.
Tapbrocerus gracilis Say.

Brachys ovata Web.
tessellata Fab.
serosa Mels.
aeruginosa Gory.
Pachyscelus lsevigatus Say.

LAMPYRID^J.

Not collected closely.

Rhyncheros sanguinipennis Say.
Calopteron terminate Say.

reticulatnm Fab.
Celetes basalis Lee *

Csenia dimidiata Fab.

Lopheros fraternus Rand.

Eros thoracicus Rand.
aurora Herbst.
sculptilis Say.
trilineatus Mels.

Plateros modestus Say.

canaliculatus Say.
Calochromus perfacetus Say.
Lucidota atra Fab.

vat. ■tarda Lee.
punctata Lee.

Ellyohina corusca Linn.

var. autumnalis Mels.
Pyropyga nigricans Say.

decipiens Harr.
fenestralis Mels.
Pyractomena lucifera Mels.

borealis Rand.
Photinus marginellus Lee.

var. castus Lee.
scintillaus Say.
pyralis Say.

Pboturis pennsylvanica DeG.

J Phengodes plumosus Oliv.
Chauliognatbns pennsylvanicus De<
marginatus Fab.
Podabrus tricostatus Say.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

Podabrus rugulosus Lee.
basilaris Say.
diadema Fab.
modestus Say.
tomentosus Say.
protensus Lee.
brunnicollis Lee.
cinctipennis Lee.
lirabellus Lee.
punctatus Lee.
pattoni Lee.

Silis percomis Say.

Telephorus dentiger Lee.

excavatus Lee.
fraxini Say.
carolinus Fab.

Telephorus lineola Fab.

rectus Mels.
scitulus Say.
longulus Lee.
tuberculatus Lee.
biliueatus Say.
Polemius latiooruis Say.
Ditenmus bidentatus Say.
Trypherus latipennis Germ.
Malthinus atripennis Lee.

occipitalis Lee.
Malthodes exilis Mels.

fragilis Lee.
arcifer Lee.
fuligiuosus Lee.
two spec, undetermined.

Collops quadrimaculatus Fab.
Anthocomus erichsoni Lee.

flavilabris Say.
Pseudebseus apicalis Say.

bicolor Lee.

MALACHIDiE.

Pseudebseus oblitus Lee.
Attalus terminalis Er.
otiosus Say.
scincetus Say.

Elasmocerus terminatus Say.
Cymatodera bicolor Say.

inornata Say.
undulata Say.

Priocera castanea Newrn.

Tricliodes apivorus Germ.

Olerus quadrisignatus Say.

4-guttatus Oliv. var. nigripes Say
J lunatus Spin.
thoracicus Oliv.

* Thanasimus dubius Fab.

* trifasciatus Say.
Thanoclerus sanguineus Say.
Hydnocera unifasciata Say.

CLERIDiE.

Hydnocera liumeralis Say and var
pallipennis Say.
verticalis Say.
longicollis Zieg.
Phyllobsenus dislocatus Say.
Ichnea latiooruis Say.

Chariessa pilosa Forst.

var. onusta Say.

Cregya vetusta Spin.
oculata Say.

Orthopleura damicornis Fab.
Necrobia rufipes Fab.

ruficollis Fab.
violacea Linn.

PTINIDiE.

Ptinus brunneus Daft.
fur Linn.

quadrimaculatus Mels.
Eucrada humeralis Mels.
Oligomerus sericans Mels.

alternans Lee.
Sitodrepa panicea Linn.
Hadrobregmus errans Mels.

carinatus Say.

TRANS. AM. ENT. SOC. XXII.

Hadrobregmus pumilus Lee.
n. s.

Trichodesma gibbosa Say:

Anobium notatum Say.

Trypopitys sericeus Say.

Petalium bistriatum Say.

Theca profunda Lee.

Eupactus nitidus Lee.

Xyletinus peltatus Harr.

OCTOBER. 1895.

JOHN HAMILTON, M. D.

336

Endecatomus rugosus Rand.
Sinoxylon basilare Say.

bidentatum Horn.
Bostrychus bicornis Web.

truncaticoJlis Lee.
Dinoderus densus Lee.

punctatus Say.

Lyctus striatulus Mels.
opaculus Lee.
planicollis Lee.

Trogoxylon parallelopipedum Mels.

CUPESTID JE.

Cupes * capita ta Fab.

LIMEXILID^E.

Lymexylon sericeum Harr.

CIOIDJE.

Cis creberrimus Mellie. Ceracis sallei Mellie.

fuscipes Melllie. Sphindus americanus Lee.

three sp. undetermined. Enrysphindus birtus Lee.

Ennearthron thoracicornis Zieg.

Xyletinus lugubris Lee.
Hemiptychus gravis Lee.

nigritulus Lee.
castaneus Ham.
Protbeca puberula Lee.
hispida Lee.

Dorcatoma setulosum Lee.

pallioorne Lee.
two new species.
Csenocara oculata Say.
Ttilinus ruficornis Say.

Cupes concolor I Vest.

LUCANID M.

Lucanus dama Thanh. Ceruchus piceus Web.

Dorcus parallelus Say. Nicagus obscurus Lee.

Platycerus quercus Web. Passalus cornutus Fab.

depressus Lee.

SCARABiEIDiE.

Canthon be vis Drury.

viridis Beauv.

Choeridium bisteroides Web.

Copris minutus Drury.

anaglypticus Say.

Carolina Linn.

Phan sens carnifex Linn.

Onthophagus hecate Pans.

janus var. orpheus Pans.

var. striatulus Beauv.
pennsylvanicus Harold.

Apliodius fossor Linn.

fimetarius Linn.
putridus Mels.
ruricola Mels.
granarius Linn.
vittatus Say.
stercorosus Mels.

Aphodius bicolor Say.

inquinatus Herbst.
terminal is Say.

* X rufipes Linn.
rubripennis Horn.
femoralis Say.
oblongus Say.

Dialytes truncatus Mels.

striatulus Say.

* ulkei Horn.

Atsenius abditus Hald.

gracilis Mels.
cognat us Lee.

* Psammodius n. s.

Bolboceras, var. tumefactus Beauv.
lazarus Fab.

Odontaeus cornigerus Mels.
Geotrupes splendidus Fab.

COLEOPTERA OF

SOUTHWESTERN PENNSYLVANIA.

.>.) I

Geotrupes semiopacus .Telcel
egeriei Germ.
balyi Jekel.
hornii Blanch.

Clceotus aphodioides III.
globosus Say.

Trox tuberculatus DeG.
eriuaceus Lee.
capillaris Say.
unistriatus Beauv.
insularis Chev.
terrestris Say.
sequalis Say.
scaber Linn.
striatus Mels.

Hoplia trifasciata Say.

trivialis Harold.
mucorea Germ.
modesta Hald.

Dichelonycha elongata Lee.

subvittata Lee.
fuscula Lee.
albicollis Barm.

Serica vespertina Gyll.
irieolor Say.
sericea III.
trociformis Barm.

Macrodactylus subspinosus Fab.

+ Diplotaxis liberta Germ.

frondicola Say.

Laehnosterna gibbosa Barm.

inversa Horn.
micans Knock.
vehemens Horn.
arcuata Smith,
cephalica Lee.
insperata Smith,
dubia Smith.
fusca Knoch.

Laehnosterna *barda Horn.

marginalis Lee.
fraterna Harris.
rugosa Mels.
innominata Smith.
balia Say.
villifrons Lee.
nitida Lee.
hirticula Knoch.
illicis Knoch,
crenulata Froel,
tristis Fab.

Anomala undulata Mels.
lucicola Fab.
marginata Fab.

Strigoderma arboricola Fab.

Pelidnotata punctata Linn.

Cotalpa lanigera Linn.

Polymoechus brevipes Lee.

Chalepus trachypygus Barm.

Ligyrus relictus Say.

Apbonus tridentatus Say.

Xylorictes satyrus Fab.

X Dynastes tityus Linn,

Allorliina nitida Linn.

Euphoria sepulchral is Fab.
fulgida Fab.
inda Linn.

Cremastochilus variolosus Kirby.

canaliculatus Kirby.
harrisii Kirby.

Osraoderma eremicola Knoch.

scabra Beauv.

Gnorimus maculosus Knoch.

Trichius piger Fab.

affinis Gory.
bibens Fab.

Valgus oanuliculatus Fab.
squamiger Beauv.

SPONDYLID^E.

Parandra brunnea Fab.

CEEAMBYCID^l.

Orthosoma brunneum First.

Prionus laticollis Drary.

imbricornis Linn.

X Tragosoma depsarium Linn.

harrisii Lee.

Sphenostethus taslei Buq.

TRANS. AM. ENT. SOC. XXII. (,43)

Asemum mcestum Hold,

Criocephalus agrestis Kirby.
Tetropium cinnamopterum Kirby.
Smodicum cucuj forme Say.
Physocnemum brevilineum Say.
Rhopalopus sanguinicollis Horn.

OCTOBER, 189o,

JOHN HAMILTON, M. D.

338

Phymatodes variabilis Fab.

am cen us Say.
dimidiatus Kirby.
varius Fab.

Merium proteus Kirby .

% Callidium antennatum Newm.

tereum Newm.

Dryobius sexfasciatus Say.

Gracilia minuta Fab.

Stromatium pubescens Halil.

Chion cinctus Drury.

var. garganieus Fab.

Eburia quadrigeminata Say.
Romaleum atomarium Drury.
rufulum Hald.

Elaphidioti mucronatum Fab.

incertum Newm.
villosum Fab.
parallelum Lee.
cinerascens Lee.
Tylonotus bimaculatus Hald.
Heteracbthes 4-maculatus Newm.
Obi'ium rubrum Newm .
rubidum Lee.

Molcchrus bimaculatus Say.
Callimoxys sanguinicollis Oliv.
Rhopalopliora longipes Say.
Purpuricenus humeralis Fab.

axillaris Hold.

Batyle suturalis Say.

Stenosphenus notatus Oliv.

Cylleue pietus Drury.

robin ise Forst.

Plagionotus speciosus Say.

* Call (tides nobilis Say.

Arhopalus fulminans Fab.
Xylotrechus colonus Fab.

Sagittarius Germ.
quadrimaculatus Hald.
undulatus Say.

* nitidus Horn.
Neoclytus scutellaris Oliv.
luscus Fab.
caprsea Say.
erythrocephalus Fab.

Cly tan thus ruricola Oliv.

albofasciatus Lap.
Microclytus gazellula Hald.
Cyrtophorus verrucosus Oliv.
Euderces picipes Fab.

Distenia undata Oliv.

Desmocerus palliatus Forst.

Necydalis mellita Say.

Encyclops cseruleus Say.

Rhagium inquisitor var.

lineatum Oliv.

Cent rod era decolorata Harr.
picta Hald.
sublineata Lee.

Toxotus schaumii Lee.

trivittatus Say.
vittiger Rand,
cylindricollis Say.
cinnamopterus Rand.

Pachyta monticola Rand.

Anthophilax malachiticus Hald.

* attenuatus Hald.

Aenueops bivittata Say.

directa Neum.

Gau rotes cyanipennis Say.

abdominal is Bland.

\ Bellamira scalaris Say.

Strangalia famelica Newm.

acuminata Oliv.
luteicornis Fab.
bicolor Swed.

Typocerus zebratus Fab.

velutinus Oliv.
lugubris Say.

Leptura emarginata Fab.

subhamata Rand.

var. elegans Lee.
lineola Say.
rubida Lee.
chalybsea Hald.
capitata Newm.
nana Newm.

var. haematites Newm.
exigua Newm.
nitens Forst.
cordifera Oliv.

* nigrella Say.
canadensis Kirby.
rubrica Say.
vagans Oliv.
circumdata Oliv.
proxima Say.
biforis Newm. .
octo-notata Say.
vittata Oliv.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

339

Leptura pubera Say.

ruficollis Say.

var. sphsericollis Say.
vibex Newm.
au rata Newm.
mutabilis Newm. and var.
Cyrtinus pygmseus I laid.
Psenocerus supernotatus Say.
Monohammus titillator Fab.

scutellatus Say.
confusor Kirby.
Dorcaschema wildii IThler.

alteruatum Say.
nigrum Say.
Hsetomis cinerea Oliv.

Goes tigrina DeG.
puleli ra Hald.
debilis Lee.
tessellata Hald.
pulverulenta Hald.
oculata Lee.

Plectrodera scalator Fab.
Acanthoderes decipiens Hald.

quadrigibbus Say.
Leptostylus aculiferus Say.

parvus Lee.
perplexus Hald.
macula Say.

Liopus variegatus Hald.
alpha Say.
panctatus Hald.

Dectes spinosus Say.

Lepturges angulatus Lee.

signatus Lee.
querci Fitch.
facetus Say.

Hyperplatys aspersus Say.

maculatus Hald.

Urographis fascia ta DeG.

Ecyrus dasycerus Say.

Eupogonius tomentosus Hald. ■
vestitus Say.
subarmatus Lee.

Oncideres cingulatus Say.

Saperda cal ca rata Say.

Candida Fab.
cretata Newm.
fayi Bland.
vestita Say.
discoid ea Fab.
tridentata Oliv.
lateralis Fab.
puncticollis Say.
con color Lee.

Obera bimaculata Oliv.

var. 3-pun eta ta || Fab.
var. basalis Lee.
tripunctata Sired,
amiabilis Hald.
ruficollis Fab.

j Tetraopes canteriator Drap.

tetraopbthalmus Foret.

Donacia palmata Oliv.

piscatrix Lee.
subtilis Kunse.
sequalis Say.
emarginata Kirby.
jucunda Lee.
Orsodacna atra Ahr.
Zeugophora varians Or.
Syneta ferruginea Germ.
Lcma trilineata Oliv.

Anomoea laticlavia Foret.
Coscinoptera dominicana Fab.
Babia quadriguttata Oliv.
Chlamys plicata Fab.

Exema dispar Lac.

Bassareus congestus Fab.

CHRYSOMEL1D JE.

Bassareus formosus Mele.

var su If u ripen nis Mele.
mammifer Newm.
var. sellatus Stiff.
var. pretiosus Mels.
var. luteipennis Mele.
lituratus Fab.

Cryptocephalus notatus Fab.

4-macidatns Say.
quadruplex Newm.
guttulatus Oliv.
venustus Fab. and var.

var. simplex Hald.
gibbicollis Hald.
mutabilis Mels.
tinctus Lee.

TRANS. AM. ENT. SOC. XXII.

OCTOBER, 1895.

340

JOHN HAMILTON, M. D.

Pachybrachys otlionus Say.

pubescens Oliv.
vidmtus Fab.
picturatus Germ.
trinotatus Mels.
tridens Mels.
carbonari us Hald.
luridus Fab.
atomarius Mels.
feraoratus Oliv.
iufaustus Hald.
bepaticus Mels.
dilatatus Suff.
three spec, undetermined.

Monachus ater Hald.

saponatus Fab.

Diachus auratus Fab.

pallidicornis Suff.

Triachus atomus Suff.

Fidia longipes Mels.

Xanthonia 10-notata Say.

villosula Mels.

Glyptoscelis pubescens Fab.

barbata Say.

Graphops pubescens Mels.

curtipennis Mels.
marcassita Cratch.

Typophorus viridicyaneus Cr.
canellus Fab.

var. aterrimus Oliv.
var. thoracicus Mels.
var. quadrinotatus Say.
var. sellatus Horn.
var. quadriguttatus Lee.
var. sexnotatus Say.

Chrysochus auratus Fab.

Tymues tricolor Fab.

violaceus Horn.
metasternalis Crotch.

Colaspis brunnea Fab.

Rhabdopterus picipes Oliv.

Nodonota tristis Oliv.

eouvexa Say.
puncticollis Say.

Ghrysodina globosa Oliv.

Doryphora clivicollis Kirby.

10-lineata Say.

Chrysomela suturalis Fab.

similis Royers.
prascelsis Roy.

Chrysomela elegans Oliv.

scalaris Lee.

ph i lad elphiaca Linn.

var. spiraea* Say.
bigsbyana Kirby.

Plagiodera viridis Mels.

Gastroidea polygoni Linn.

eyanea Mels.

Melasoma lapponica Linn.
scripta Fab.

Pbyllodecta vulgatissima Linn.

Trirhabda canadensis Kirby.

Galerucella tuberculata Say.

cavicollis Lee.
rufosanguinea Say.
notulata Fab.
notata Fab.
nymph fese Linn.

Diabrotica 12-punctata Fab.
vittata Fab.

Luperodes varicornis Lee.

thoracicus Mels.
meraca Say.
cyanellus Lee.

Phyllechthrus gentilis Lee.

Galeruca externa Say.

Cerotoma 3-furcata Forst.
caminea Fab.

Blepharida rhois Forst.

Oedionychis gibbitarsus Say.

t.horacica Fab.
vians III.

thyamoides Crotch.
limbalis Mels.

var. subvittata Horn.
6 maculata Linn. ■
quereata Fab. and var.

Homcphceta lustrans Crotch.

Disonycha pennsylvanica III.

var. pallipes Crotch.
caroiiana Fab.
glabrata Fab.
discoidea Fab.
triangularis Say.
xanthomelama Dalm.

Haltica chalybea Illig.

ignita III. and var.

Orthaltica copalina Fab.

Crepidodera rufipes Linn.

helixines Linn.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

341

Crcpidodera atriventris Mels.
Epitrix cucumeris Harr.
Mantura floridana Crotch.
Chsetocneina cribrata Lee.

subcylindrica Lee.
minuta Mels.
con I'm is Crotch.
Systena liudsonias Forst.
frontalis Fab.
beni a ta Say.

var. blanda Mels.
marginalis III.
Glyptina spuria Lee.
Phyllotreta sinuata Steph.

vittata Fab.
bipustulata Fab.
picta Say.

Luperaltica senilis Lee.

fuscula Say.

Longitarsus testaceus J Ids.

melanurus Mels.

Dibolia borealis Chev.

Psylliodes punctulata Mels.

Microrbopala porc.ata Mels.

Odontota dorsalis Thunb.
rubra Web.
nervosa Pans.

Stenispa metallica Fab.

Physonota unipunctata Say.

Cassida nigripes Say.

bivittata Say.

Coptocycla bicolor

aurichalcea Fab.
signifera Herbst.
guttata j Oliv.
purpurata Bohm.
clavata Fab.

Cbelymorplia argus Lieht.

Bruchus pisorurn IJnn.
mimus Say.
discoideus Say.

BRUCHIDJE.

alboscutellatus Horn.
calvus Horn.
obtectus Say.

TENEBRIONIDiE.

Phellopsis obcordata Kirby.
Alobates pennsylvanicus I)e(J.

barbatus Enoch.
Iphtbimus opacus Lee.
Merinus be vis Oliv.

J Upis ceramboides Linn.
Haplandrus fem o rat us Fab.
ater Lee.

Scotobates calcaratus Fab.
Xylopinus saperdioides Oliv.

fenescens Lee.
Tenebrio obscurus Fab.

molitor Linn.
castaneus Enoch.
tenebrioides Beauv.
Opatrinus notus Say.
Blapstinus metallicus Fab.

mcestus Mels.

Tribolium ferrugineum Fab.

madens Charp.
Dicedus pu uctatus Lee.
Echocerus maxillosus Fab.
Alpbitobius diaperinus Pans.
Ulorna impressa Mels.
imbellis Lee.
men tabs Horn.

Uloma punctulata Lee.
Eutochia picea Mels.

An ted us brunneus Zieg.
Paratenetus punctatus Sol.

fuscus Lee.
Diaperis maculata Oliv.
Arrhenoplita viridipennis Fab.

bicornis Oliv.
Platydema excavatum Say.

ruficorne Sturm.
flavipes Fab.
ellipticum Fab.
americanum Lap.
subcostatum Lapl.
Alpbitophagus bifasciatus Say.
Hypoplilceus parallelus Mels.

thoracicus Mels.
Pentaphyllus pallidus Lee.
Boletotberus bifurcus Fab.
Boletopbagus eorticola Say.

depressus Rand.
Helops micans Fab.

americanus Beauv.
fereus Germ.

Meracantba contracta Beauv.
Strougylium tenuicolle Say.

TRANS. AM. ENT. SOC. XXII.

OCTOBER. 1895.

JOHN HAMILTON, M. D.

342

Allecula punctulata Mels.
atra Say.
nigrans Mels.
Hymenorus pilosus Mels.

obscurus Say.
liiger Mels.
communis Lee.
rufipes Lee.
humeralis Lee.
Cistela brevis Say.

* marginata Zieg.
sericea Say.

CISTELID.E.

Isomira quadristriata Coup.
ruficollis Ham.

Mycetochares rufipes Lee.

laticollis Lee.
haldeuiani Lee.
foveatus Lee.
tenuis Lee.
lugubris Lee.
binotatus Say.

Chromatia amcena Say and var.

Capnochroa fuliginosa Mels.

Androchirus fuscipes Mels.

Arthromacra ;enea Say.

var. (golden colored)

LAGRIIDiE.

Statira gagatina Mels.

MELANPRYIDiE.

Tetratoma truncorum Lee. Spilotus 4-pastulosus Mels.

tessellata Mels.
Penthe obliquata Fab.
pimelia Fab.

Syncbroa punctata Newm.
Eustrophus confinis Lee.

bicolor Say.
tomentosus Say.
Holostrophus bifasciatus Say.
Hallomenus scapularis Mels.
Orchesia oastanea Mels.
Melandrya striata Say.
Emmesa labiata Say.

*' Zilora hispida Lee.

* Carebara longula Lee.
Mystaxis simulator Newm.

* Enchodes sericea Hold.
Serropalpus barbatus Schall.
Hypulus lituratus Lee.

vaudoueri Mnls.
Sympbora flavicollis Halil.

rugosa Hold.

Scrap tia sericea Mels.

Canifa plagiata Mels.
pusilla Hold.
pallipes Mels.

Nothus varians Lee.

Lecontia discicollis Lee.

Boros unicolor Say
* Pytho depressus Linn.

PYTHIDiE.

Pytho planus Oliv.

Salpingus virescens Lee.

* Ithinosimus viridiseneus Rand.

Micro ton us sericans Lee.
Nacerdes melanura [Ann.

OEDEMERIDiE.

Asclera ruficollis Say.

puncticollis Say.

Cephaloon lepturides Newm.

CEPHALOID.ZE.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

34

MORDELLIDiE.

Pentaria trifasciata Mels.

Mordelistena lepidula Lee.

Anaspis nigra Hald.

ornata Mels.

flavipennis Hald.

scapularis Say.

rufa Say.

comata Lee.

Tomoxia bidentata Say.

aspersa Mels.

lineella Say.

tosta Lee.

inclusa Lee.

ustulata Lee.

hilaris Say.

nigricans Mels.

Mordella melsena Fab.

guttulata Helm.

octopunctata Fab.

p ustulata Mels.

margin ata Mels.

ambusta Lee.

serval Say.

unicolor Lee.

oculata Say.

marginalia Say.

triloba Say.

pubescens Fab.

undulata Mels.

liturata Mels.

discoidea Mels.

fuscata Mels.

Mordelistena lutea Mels.

pityptera Lee.

trifasciata Say.

attenuata Say.

Eurygenius murinus Hald.

ANTHICIDJE.

Notoxus bifasciatus Lee.

wildii Lee.

monodon Fab.

Corphyra canaliculata Lee.

anchora Hentz.

terminalis Say.

Tomoderus constrictus Say. '

labiata Say.

Anthicus obscurus Laf.

lugubris Say.

cinctus Say.

col laris Say.

rejectus Lee.

Xplopliilus basalis Lee.

floral is Linn.

nebulosus Lee.

formicarus Goese.

fasciatus Mels.

basilaris Say.

subfasciatus Lee.

vicinuus Laf.

piceus Lee.

confusus Lee.

Macratria confusa Lee.

cervinus Laf.

murina Fab.

pubescens Lee.

Notoxus bicolor Say.

Pyrocliroa flabellata Fab.

PYROCHROIDJE.

Dendroides canadensis Latrl.

femoralis Lee.

concolor Newm.

Dendroides bicolor Newm.

Melee angusticollis Say.

MELOIDJE.

Epicauta vittata Fab.

americanus Leach.

lemnistica Fab.

Nemognatha nemorensis Herd:

cinerea Forst.

Macrobasis nnicolor Kirby.

pennsylvanica DeG.

Epicauta triebrus Pallas.

Pomphopcea senea Say.

TEANS. AM. ENT. SOC. XXII.

OCTOBER, 1895.

344

JOHN HAMILTON, M. D.

Myodites fasciatus Say.

RHIPIPHORIDiE.

RHYNCHITID-® .

Auletes ater Lee. Rhinchites bicolor Fab.

Eugnamptus angustatus Hbst. Pterocolus ovatus Fab.

col laris Lee.

ATTELi ABIDES.

Attelabus aualis III. Attelabus rbois Bohn.

bipustulatus Fab.

OTIORHYNCHIDiE .

Anametis granulatus Say.

grisea Horn.
Phyxelis rigirlus Say.
Otiorhynchus sulcatus Fab.

ovatus Linn.

Cercopeus chrysorhceus Say.

Tanycemus confertus Gyll.
Pandeletejus hilaris Hbst.
Aphrastus tseniatus Gyll.
Polydrosus dorsalis Horn.
Scythropus elegans Coup.

CURCULIONIDAi!.

Sitones flaveseens Marsh.

bispidulus Germ.
Lepidophorus setiger (infra).
Ithycerus noveboracensis Forst.
Apion decoloratum Smith.
herculanum Smith.
nigrum Hbst.
five spec, undetermined.
Phytonomus punctatus Fab.
Listronotus. squamiger Say.

insequalipennis Bohn.
caudatus Say.
appendiculatus Bohn.
frontalis Lee.

Macrops solutus Bohn.
sparsus Say.
bumilis Gyll.

Pissodes strobi Peck.

Hylobius pales Hbst.

Lixus terminalis Lee.
concavus Say.
musculus Say.

Dorytomus mucidus Say.

brevicollis Lee.

Erycus puncticollis Lee.
Pachypbanes amcenus Say.
Smicronyx morio Diets.

sculpticollis Diets.

Smicronyx maculatus Diets.

corniculatus Fab.
squamulatus Lee.

Endalus ovalis Lee.

Tanysphyrus lemn'se Fab.

Bagous n. s.

Otidocepbalus myrmex Hbst.

scrobicollis Bohn.
cbevrolatii Horn.
laevicollis Horn.

* perforatus Horn.

Magdalis barbita Say.

olyra Hbst.
pan dura Say.
armicollis Say 9 •
pallida Say %, .
n. s.

Tachypterus quadrigibbus Say.

Anthonomus profundus Lee.

nebulosus Lee.
sycophanta Walsh.
suturalis Lee.
flavieornis Bohn.
corvulus Lee.
signatus Say.

var. pallidus Diet
musculus Say.
scutellatus Gyll.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

34

Anthonomopsis mixtus Lee.
Pseudanthonomus cratsegi Walsh.

incipiens Dietz.
Elleschus scanicus Payh.

ephippiatus Say.

Orc.hestes ephippiatus Say.
niger Horn.
armatus Dietz.
pallicornis Say.

Acalyptus carpini Herbst.
Prionomerus calceatus Say.
Piazorhinus scutellaris Say.
pictus Lee.

Thysanocnemis fraxiui Lee.

helvolus Lee.
Gymnetron tetrimi Fab.

Miarus hispid ulus Lee.

Lsemosaccus plagiatus Fab.
Conotrachelus juglandis Lee.

nenuphar Hbst.
retentus Say.
seniculus Lee.
elegans Say.
cratsegi Walsh.
postiacus Bohm.
geminatus Lee.
cribricollis Say.
anaglypticus Say.
Rhyssematus palmacollis Say.

lineaticollis Say.
sequalis Horn.

* Microhyus setiger Lee.

Acalles sordidus Lee.

? curt us Ham.

Tyloderma foveolatum Say.

fragrarjge Riley.
sereum Say.

Oryptorhynchus parochus Hbst.

bisignatus Say.
minutissimus Lee.
fallax Lee.
ferratus Say.
Piazurus oculatus Say.

Piazurus subfasciatus Lee.

Copturus quercus Say.

binotatus Lee.

J minutus Lee.

Acoptus suturalis Lee.

Craponius inaequalis Say.

Coeliodes nebulosus Lee.

flavicaudis Bohm.
acephalus Say.

Acallodes ventricosus Lee.

Ceutorhynchus rapse Gy II.

sulcipennis Lee.
u. s.

septentrionalis Gyll.

Pelenomus sulc.icollis Fab.

squamosus Lee.

Rhinoncus pyrrhopus Bohm.

Baris umbilieata Lee.
interstitialis Say.
con finis Lee.

Plesiobaris T. sigaium Bohm.

Glyptobaris rugicollis Lee.

Ampeloglypter ater Lee.

Madarellus undulatus Say.

Pseudobaris nigrina Say.

Trichobaris trinotata Say.

Centrinus picumnus Hbst.

scutellum-album Say.

Centrinopus helvinus Casey.

Nicentrus lineicollis Bohm.
decipieus Lee.

Limnobaris calva Lee.

recti rostris Lee.

Idiostetbus tubulatus var.

strigapunctus Hamilton.

Balaninus obtusus Blanchard.
uniformis Lee.
nasicus Say.
car v;e Horn.
quercus Horn.
rectus Say.
proboscideus Fab.
confusor Ham.

Eupsalis minuta Drury.

BRENTHID^E.

TRANS. AM. ENT. SOC. XXII.

(44)

OCTOBER, 1895

JOHN HAMILTON, M. I).

346

CALANDRIDiE.

Rhodobsenus tredecimpunctatus III.
Sphenophorus sculptilis Uhler.

melanocephalus Fab.
placid us Say.
minimus Hart.
Calandra oryzse Linn.

granaria IAmn.
remotepunctata Gyll.
Dryophthorus americanus Bedel.

Dryophthorus cortical in || Say.
Himatium errans Lee.

conicum Lee.
Cossonus platalea Say.

corticola Say.
impressifrons Bohm.
Stenomimus pallidus Bohm.
Phloeophagus apionides Horn.

Corthylus punctatissimus Zimin.
Monarthrum fasciatum Say.

mali Fitch.

Gnathotrichus materiarius Fitch.
Pityophthorus sparsus Lee.

pu be i'll lus Lee.
Hypothenemus cruditus West.

dissimilis Lee.
Xyloterus politus Say.

Xyleborus dispar Fab.

celsus Ficli .
Xylograph us Say.

pnbescens Linn.
cselatus Eich.
Tomicus cacographus Lee.

SCOLYTID JE.

Tomicus pini Say.

Micracis sutural is Lee.

aculeata Lee.
rudis Lee.

Scolytus quadrispinosus Say.
muticus Say.
rugulosus Rats.
n. s. ( Schwarz )
Chramesus icorise Lee.
Phloeotribus frontalis Oliv.
Hylesinus opaculus Lee.
Cnesinus strigicollis Lee.
Dendroctonus terebrans Oliv.
Hylastes tenuis Zimm.

Eurymycter fasciatus Oliv.
Allandrus n. s.

Hormiscus saltator Lee.
Eusphyrus walshii Lee.

ANTHRIBIIDiE.

Cratoparis lunatus Fab.
Brachytarsus alternatus Say.

tomentosus Say.
variegatus Say.

Description of New Species.

My rmetlonia sclimil ti. — Parallel, black, shining, basal joint of antennae,
legs and triangle on each elytron rufous, pubescence of thorax and elytra very
inconspicuous, that of ventral segments coarser. Length .1H mm. Head small,
shining black, alutaceous, constricted at base; antennae brown exteriorly, loosely
perfoliate from third joint, first joint nearly three times longer than second and
subclavate, second thinner, third more than twice longer and clavate, 4-5 as long
as second, and slightly longer than wide, 6-10 transverse and gradually incrassate,
eleventh as long as preceding two, and acutely conical. Thorax twice wider than
long, sides and base broadly arcuate, and with a very fine continuous margin,
base suddenly depressed each side of middle causing a bisinuate and lobed ap¬
pearance, shining, punctuation fine, reticulo-strigose, no dorsal impressions, except

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

347

a slight appearance of a dorsal line. Elytra as wide as thorax, not longer, suture
not impressed, punctuation same as that of thorax, hut coarser; sides and a hasal
triangle blackish, a triangle on each elytron pointing at humerus rufous as seen
in certain Aleochara : base arcuately emarginate to admit the thorax. Abdomen
as wide as elytra, sides parallel, deeply margined, first three segments concave,
black shining with a few setigerous punctures; underside shining black, ventral
segments punctate, but not very finely ; middle coxae widely separated, rnesos-
ternum wide and divided into three equal parts by two oblique lines deeply im¬
pressed anteriorly, hut evanescent posteriorly (sub-trilobed), separated from the
metasternum by an accessory piece.

Characterized from four examples without apparent sexual dis¬
tinction. Occurs not infrequently near St. Vincent, where it is taken
always with ants ( Formica subserlcea Say) by Rev. Jerome Schmitt,
who kindly permits its description, and whose name it bears in com¬
memoration of his zeal in micro-entomology.

H oinaliiini llaviduni. — Rufo-testaceous throughout, shining, head
smooth, bipunctate between the antennse, which are gradually incrassate from the
second joint, and with the sixth and outer ones transverse. Thorax quadrate,
the sides slightly narrowed from middle to apex, hind angles rectangular, disc
with two longitudinal impressions not reaching apex, separated by a fine groove
reaching apex, where it is slightly dilated giving the appearance of a small im¬
pression at apex more or less visible, sides impressed at middle. Elytra a little
wider than thorax, slightly wider from base, outer angles strongly obtuse, finely
closely punctured in approximate rows producing a longitudinal suhstriolate
appearance. Abdomen parallel, and of the same width as the elytra, alutaceous.

Several examples occurred near St. Vincent.

Atomaria liunieralis. — Elongate, depressed, plumbeous-brown, legs
paler, humerus and obsolete spot near elytral apex ferruginous. Length .09 inch.
Head smooth, vertex with a deep puncture. Antenna; approximate, eighth .joint
smaller than the ninth forming the base of the club. Thorax quadrate, convex
transversely and longitudinally, finely punctulate and pubescent, margined at
base. Elytra slightly widened behind, a little wider at base than thorax and
three times longer, depressed, circularly impressed behind the scutellum, coarsely
closely punctate, pubescence fine, short, cinereous.

Two examples taken in the evening about a wood pile ; resembles
but little ochracea or ephippiata ; the elytra are of a similar form
to those of Xylophilus tuberculifer, but with coarser punctures.

Lepitlopliorus setiger. — Piceous, antennse and feet ferruginous, surface
with small round scales, elytra with rows of setse. Length .12-14 inch. Head
densely scaly, beak dilated towards tip, a little flattened above, densely scaly.
Antennse inserted near the tip, scape nearly as long as the outer part, extending
behind the eye, which is round and very small. Thorax a little wider than long,
convex, slightly narrowed anteriorly, not constricted at apex, except at sides,
densely rather coarsely punctured, each puncture with a small round scale very
fugitive, trivittate with fugitive whitish scales, surface piceous; scutellum not

TRANS. AM. ENT. SOC. XXII.

OCTOBER. 1895.

JOHN HAMILTON, M. D.

348

visible. Elytra one-half wider than thorax, not depressed, subinflated, finely
striate, with close, minute punctures in the bottom, intervals wide, flat, seemingly
impuuctate, covered with small brownish scales very inconspicuously, and each
with a row of stout yellow setae extending from base to apex, surface mottled
with fugitive pale scales: color, when divested of scales, rufo-piceous to piceous;
underside less densely scaly, piceous except feet and last three ventral segments
ferruginous. In the % the posterior part of the metasternum. first and second
ventral segments are jointly concave, the third and fourth segments together are
one-half longer than either of the preceding and equal to the fifth.

The vittse of the thorax and mottling of the elytra are only seen
ia well preserved specimens; this is likewise the case in lineaticollis,
which, apart from size, differs in having a longer beak, a different
form of thorax, larger scales, and the elytral sette only visible on
the declivity.

Occurs near St. Vincent, taken by P. Jerome Schmitt. Virginia
(Dietz).

NOTES.

CICINDELA.

C. unipunctata is rare, on paths through woody, mountainous places; patruela
not common, on old roads and paths through hilly woodlands; 12-guttata not
rare, along creeks; purpurea abundant in early Spring and in Autumn, hiber¬
nates; punctulata common, attracted by lights.

CARABIDAi!.

Cychrus. — All the species hibernate; canadensis rare, mostly taken from Sep¬
tember to November; elevatus rare, Jeannette; vidnns not uncommon here,
more common near the mountains ; ridingsii, only one example here, several
at Jeannette; andrewsi, not rare, mostly from August to December.

Nomaretus imperfectus. — One example on mountain near St. Vincent’s, by
Schmitt.

Carabus. — All the species hibernate ; serratus , not uncommon under stones in
hilly woods; limbatus, more common in same places; vinctus, alluvial places
under rubbish ; sylvosus, one. example ; several at Jeannette.

Calosoma externum. — Not common; frigidum , two examples here; several
near St. Vincent’s; scrutator and wilcoxi come abundantly at night to electric
lights in May ; calidum less frequently.

Elaphrus cicatricosus. — Not common, grassy swamps, June.

Notiophilus. — The species are not rare, under stones and rubbish, June to No¬
vember.

Pasimachus depressus. — Only three, examples, May and June.

Dyscliirius nigriceps, globulosus and sphxricoUis occur occasionally; hsemor-
rhoidalis, abundant along streams ; hispidm, abundant when found, not com¬
mon, damp alluvial places.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

34(J

Clivina impressifrons. — Not uncommon along streams, likewise rufa and
americana ; bipustulata, rare along streams.

Schizog-enius lineolatus. — Not rare, banks of streams ; amphibius , less common,
under stones in streams.

Ardistomis viridis. — Only a few examples were seen, wet places.

Panag'geus fasciatus. — Not uncommon in early Spring and in Autumn under
stones on hills, frequently hibernates in ants’ nests.

Bembidium punctatostriatum and insequale common on muddy shores; ni-
tidulum || and americanum not rare ; chalceum, only three examples ; antiquum
less rare ; nigrum, simplex and guexii, abundant when found, but in few lo¬
calities, mostly along rocky streams; ustulatum, two examples; this and all
the preceding occur along the shores of creeks; picipes , abundant in the beds
of hill rivulets ; postremum, common on sandy shore of river, June and July ;
dentellum, abundant in alluvial places in grass and rubbish ; postfasciatum, not
common, gregarious, on mud flats along streams; patruele , common ; variega-
tum and versicolor less common, and all along streams: sulcatum, not common,
in grass about ponds and swamps ; affine and assimile, abundant in grassy
swamps and alluvium ; quadrimaculatum , all situations ; pedicel' atmn, not
common, wet grassy places; tsevigatum, sandy beaches, June and July.

Tachys proximus, scitulus and coruscus, humid places; Isevis, not rare; nanus
and flavicauda under bark ; vivax, capax, xanthopns, incurvus, nebulosus and an
indeterminate, occur along the shores of streams and in nearly all humid
places.

Pericompsus ephippiatus. — Common on mud flats.

Patrobus longicornis. — All wet places.

Myas coracinus. — Not uncommon on hills in woods; cyanescens, two examples :
more frequent near the mountains.

Pterosticbus adoxus Say. — Common, breeds in decaying logs ; rostratus, same
habits, only four examples, more common towards the mountains; vinctus,
not common, found in colonies, woody hills; unicolor, only one example on a
high ridge; apalachius, hillside rivulets, July to October; honestus breeds in
decaying wood ; obscurus, not common, under stones on hills; lachrimosus, not
common, breeds in rotting wood ; coracinus more common, moist woodland
hills; stygicus, everywhere; relictus, local, slaty, moist ravines and hills;
mcestus, not rare, breeds in rotting logs ; sculptus , two examples under stones,
common along the mountains; hamiltoni, under stones on hills; sayi, rank
herbage on alluvial places; lucublandus . everywhere; caudicalis, luctuosus ,
under rubbish in damp places; corvinus, breeds in swamps; tartaricus, two
examples at lights; purpuratus, abundant where found, rich hills, September
and April ; mutus. under stones in woods and fields; erythropus, not rare, va¬
rious places; pat.ruelis, femoralis, not common, in primitive swamps.

Evarthrus sigrillatus, sodalis, under rubbish and stones, not rare.

Avara avida, exarata, in same places ; fulvipes local, abundant when found,
September; angustata, rare, under rubbish; impuncticollis, everywhere; ba-
sillaris, two examples ; cupreolata, not rare, grassy places ; fallax, not rare in
localities; obesa, not common, under stones; rubrica, three examples; nms-
culus, not common.

Diplochila major. — Two examples at light.

TEANS. AM. ENT. SOC. XXII.

OCTOBEK, 1895.

JOHN HAMILTON, M. I).

350

Dictelus dil status var. dejeani , not rare ; purpuratus, sculptilis, ovalis and elon-
gat us are not uncommon under stones : ambiguus, one example ; also at Jean¬
nette; teter, common under stones; politus. abundant under stones and bark.

Badister notatus. — Three examples; pulchellus , two examples at lights.

Calathus impunctatus. — Three examples; common near the mountains.

Platynus caudatus. — One example, Jeannette; hypolithus, anqustatm , about
streams under stones, etc. ; deems, not rare, wet places; sinuatus, near streams
about trees: reflexus, hillside rivulets; parmarginatns. local, in the bed of a
dry spring run; ancliomenoides, under alluvial rubbish and grass; obscurus,
rare, Jeannette; atratus, about wet places ; melanarius, alluvial places; c.u-
pripmnis, everywhere, but not abundant ; excavatus, not rare, on grassy places
near streams; ferreus, not rare, all localities; nutans, two examples; octopunc-
tatus, everywhere, but not abundant ; placidm, gregarious, grassy places about
fences, etc.; bogemanni, in houses, about lumber and on the streets; quadri-
punctatus, not common, wet places; seruginosus, not rare, grassy banks of
streams ; crenistriatus, not abundant, under stones ; punctiformis, every place,
under stones, etc.; retractus, two examples; picipennis, under rubbish, etc.,
on low ground.

Olisthopus parmatus. — Two examples, in swamp.

Atranus pubescens. — Humid places under rubbish.

Leptotrachelus dorsalis . — J ean n ette.

Casnonia pennsylvanica. — Not abundant, everywhere.

Galerita janus. — Gregarious, under stones, etc.

Tetrag-onoderus fasciatus. — Not common, near water.

Lebia grandis, atriventris, common, hibernates; viridis, pumiUa, abundant, on
bushes, etc. ; viridipennis, lobnlata. less common ; ornata Say, several varieties,
common ; fuscata, furcata, rare, on herbage in valleys; scapularis, not rare on
herbage on low ground ; bivittata, uot common.

Coptodera serata. — Rare, about piled wood.

Dromius piceus. — Under bark of standing trees, etc.

Apristus cordicollis. — Two examples.

Blecbrus pusio. — Twenty examples taken once.

Metabletus americanus. — About stumps and logs.

Plochionus timidus. — 1 Two examples.

Pinacodera limbata var. fuscata and platieollis, about standing trees under bark.

Cymindis americana, pilosa, not rare, under stones ; neglecta, not common,
about logs, gregarious.

Apenes lucida. — Five examples, under stones, May; sinuata, not rare, April to
November, under rubbish.

Brachinus americanus. — Three examples ; ? perplexus, common along streams ;
? alter nans, 1 cordicollis, of each two examples.

Chlsenius erythropus. — One example on high hill; sericens, near water; lati-
collis, diffinis, under stones on hills ; platyderus, two examples : aestivus, not
rare ; prasinus, river beach ; lencoscelis, not common : nemo rails, occasional,
under stones on hills; tricolor, more common, same habitat; pennsylvanicus ,
and varieties, everywhere; impunctifrons, not abundant, various places; niger,
rare, near St. Vincent ; tomentosus, about fences and stone-piles.

Anomogdossus emargdnatus. — Common ; pusillus, grassy places about water.

Brachylobus lithophilus. — Same habitat, less common.

Lachnocrepis parallelus. — Two examples in a swamp.

OLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

351

Oodes amaroides. — Wet places, not common.

Geopinus incrassatus.— Rather scarce, sandy shores.

Cratacanthus dubius.— Not abundant, everywhere.

Agonoderus lineola.— Three examples, sandy beach; paUtpes and var. comm, ,
everywhere; partiarius. pauperculm , not common.

Gynandropus hylacis.— Under bark of standing trees.

Harpalus dichrous, vulpeculus, common, under stones on lulls : nutnmnahs

common ; megacephalus , spadices, fallax, rare ; herbivagus. everywhere ; vrdnus
not rare, under stones on hills, matures in Autumn ; basilans, two examples.

Selenopborus palliatus.-Rare, sandy beaches ; gagatinus, not rare ; opahnus,
occasional on river beach ; elliptic* var. gr unarms, not common, under stones

on beach, May. . , . ,

Stenolophus fuliginosus.-Not rare; plebeius, wet places in grass; /rnmnb.,
abundant, same habitat; conjunct m (red thorax), everywhere; var. with
black thorax, in grass about fences; ochropezus, everywhere: alternans, rare,
semi-aquatic, wet sandy places along streams.

Acupalpus carus.— By sweeping in marshes.

Bradycellus rupestris and varieties, everywhere.

Tachycellus kirbyi.-In a swamp soon to be drained ; atnmedms, humid places ,
badiipennis, less abundant.

Anisodactylus rusticus.-Type form, everywhere; carbonanus common
interpnnctatus, two examples; agricola, harrisii, nigernmus moderately abun¬
dant; nigrita, three examples; melanopns, not common; discoideus, baltimor-
ensis, alluvial places and near water ; piccm, three examples ; agtlis, ton, ex¬
amples; terminal is, nitidipennis, everywhere; cm. two examples at ligh ,
lugubris , interstitial™ . abundant ; sericem, occasionally at light.

HALIPLID^B.

The species have not been collected exhaustively; Haliplus ruficollis and Cnemi-
c lotus 12-pnnctatm are frequent.

DYTISCIDiE.

The Dvtiscidse have not been exhaustively collected, and many more species will
reward the collector who has suitable opportunities. The species tabulated
are mostlv common, unless otherwise noted.

Ccelambus impressopunctatus and Deronectes griseostriatm were taken but
once- Hy.droporus var. pidcher , two examples : vitioms and Mon, jus are seem-
in.lv rare, the latter also occurs at St. Vincent; Agabus stagninus, four exam¬
ples at once in a swamp ; txnicolatus, three examples in different swamps .
Colymbetes sculptilis seems rare.

GYRINIDiE.

The diagnosis of the species of Gyrinus is more or less opinionative. and others
may occur here.

HYDROPHILID^E.

Other species than those listed await a collector with greater opportunities.

Ochthebius benefossus, foveicollis, occurred near St. Vincent. i opts , mu*
striolatus three examples once ; Philydrus hamiltoni, not common : Cymbiodyta
blanchardi, spring runs on hillsides; Hydrobim globosus, rare, on stones m

OCTOBER, 1895.

TRANS. AM. ENT. SOC. XXII.

352

JOHN HAMILTON, M. D.

running water: Creniphilus monticola, near St. Vincent; Cercyon unipunctatm,
not rare, under decaying carcasses: prsetextatus, in rotting fungi; navimlaris,
rare, in drying fungi ; pubescens , common in dry horse dung ; Oryptorhopleurum
minutum, abundant under decaying vegetation, etc.

LEPTINIDiE.

Leptinus testaceus. — Twice in old leaves in November; frequent near St.
Vincent, where it is taken by Prof. Schmitt, mostly by sifting.

SILPHIDAL.

Necropborus americanus. — One example ; pustulatm, two examples ; the other
species are common.

Silpha lapponica. — Jeannette; this species seems to be spreading southward ;
the other species are common.

Pinodytes cryptophagoides. — Taken here once, near St. Vincent frequently
by sifting for ants ; hamiltoni. only three examples of this rare beetle, which
is blind, occurred here; a few others were taken near St. Vincent.

Choleva. — All the species are common on carcasses, at putrid sap, etc.

Prionocheeta opaca. — At putrid sap, fungi, etc., April.

Ptomophagus parasitus. — April, with large ants under stones; brachypterm,
St. Vincent, by sifting.

Colenis impunctata. — About decaying vegetable matter.

Liodes globosa, polita, not common, in fungi ; often in clusters under bark of
trees in April ; discolor , not frequent ; basalts, not rare, in soft fungus on logs,
May ; obsoleta, not common, under hark, May.

Agathidium oniscoides, exiguum, common on green fungus under bark ; po-
litum , not frequent, in decaying mushrooms, September to October.

SCYDMiENTDJE and PSELA PH 1 ICE.

By P. Jerome Schmitt, St. Vincent, College, Pa.

These families have been placed in charge of Prof. Schmitt, and
his very valuable collection notes are given in full. All additions
of my own are inclosed in [ ].

Euthiodes cristata Brend. — Obtained by siftiug la ye re of old leaves on the
Chestnut Ridge, Cambria County. Specimens in Dr. Brendel’s collection.
[Cephennium corporosum Lee. — Several examples were taken at various times
in April on the underside of boards on damp grassy places.]

Cholerus zimmermanni Schaum. — Rarely found under bark and in the woods
of decayed trees, in Spring and Autumn. Ten specimens.

Eumicrus motschulskii Lee. — Sifted from old leaves; sixteen specimens taken.
Eumicrus caseyi Brend. — Found in very rotten wood and under old leaves,
usually in small companies; total number of specimens taken, seventy. It
differs from Eumicrus motschulskii and vestalis, and the European tarsatus both
in general habitus and by its short posterior coxae.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

353

Eumicrus n. sp. — This is a small species, 1.2 mm. long, resembling a miniature
Cholerus simmermanni in appearance, and more or less also in sculpture, but
has the long posterior coxse of Eumicrus. A colony of twenty-two specimens
was found Dec. 26, 1894, in the black, accumulated, decayed material of a
partially hollow, though still living, oak that had been broken down by a
recent storm.

Brachycepsis subpunctatus Lee. — Thirteen specimens, found at different
times among decaying leaves.

Brachycepsis mariae Lee. — Taken more abundantly (thirty specimens) with
the last, also obtained from Cambria County.

Brachycepsis n. sp. (teste Dr. Brendel) — Very scarce, also taken with the last.
The antennal club of this consists of three large joints.

Brachycepsis cribrarius Lee. — Eight specimens collected with the sieve, and
two on Dec. 26, 1894, with the above-mentioned Eumicrus sp.

[Scydmaenus fossiger Lee. — Abundant under stones, etc., March to April.]

Scydmaenus from capillosnlus to minimus were all taken at various times with
the sieve, or found in dead wood, or under stones; none at any time in the
company of ants. No notes were made of the captures of the different spe¬
cies. For the names I am indebted to the kindness of Dr. Brendel.

Scydmaenus minimus Brend. — Found in very friable, rottenwood in April,
usually in small colonies.

Scydmaenus sp. long. .95 mm. — Probably not described, of the form of ovithorax
Brend. Yellowish red ; the second joint of antennae the. largest, the seventh
larger than its neighbors, club 3-jointed ; frontal margin without impressed
lines. One specimen.

Scydmaenus clavipes Say. — Black, slightly larger than Sc. davatus. Head and
elytra very shining, and with but few scattered long hairs; the head lacks
the usual basal tufts of coarse hair, whereas the thorax is densely, almost
completely, covered with long, yellowish brown, bristling hair, giving it a
striking, shaggy appearance. Four examples sifted in Cambria County, April.

PSELAPHIDiE.

Faronus tolulse Lee. — Very scarce. Altogether but six specimens have been
taken on the Chestnut Ridge, by sifting layers of old leaves during Winter.

Rhexius insculptus Lee. — Taken but rarely in dead wood under bark, or under
stones, and more abundantly with the sweeping-net in a grassy wood in
Spring.

Rhexius schmitti Brend. — A single specimen found under a stone on the Chest¬
nut Ridge in May.

Rhexius canaliculatus Lee.— Occurs abundantly in moss on the Chestnut
Ridge, also in North Carolina in Autumn and Spring.

Rhexidius trogasteroides Brend. — Six males and one female have been sifted
from deep layers of old leaves on the Chestnut Ridge during Winter.

Trimium parvulum Lee. — A colony of twenty to thirty specimens were, on one
occasion, taken in a very rotten oak stump in April, and a single individual
last July also in rotten wood.

[Trimium thoracicum Brend. -Rare, six examples found in very rotten wood,
April 20th.]

Trimium sp. — A single specimen, undescribed, with very widely separated oc¬
cipital fovere.

TRANS. AM. ENT. SOC. XXII.

(45)

OCTOBER, 1895.

354

JOHN HAMILTON, M. D.

Euplectus crinitus Lee. — Scarce ; found under bark of dead trees, April, May.

Euplectus interruptus Lee.-- Not very abundant in rotten logs and stumps, in
Spring.

Euplectus confluens Lee. — Abundant in Autumn and Spring in rotten wood ;
varies in the sculpture of the head and the shape of the ventral sexual marks
of the male.

Euplectus elong'atus Brend. — Rather scarce ; found with confluens.

Euplectus pertenuis Casey.— A dozen specimens taken with Trimium parvulum ;
others found with Euplectus confluens in Spring.

Euplectus leviceps Casey. — Three examples from Cambria County. Pa., April.

Euplectus sp. — Near confluens, but smaller, with more slender and graceful an¬
tenna; and different ventral, sexual marks in the male ; several % %nd 9
specimens found in dead wood in Winter; a*pair Dec. 26, 1894.

Trimioplectus obsoletus Brend. — Scarce ; only three specimens, two of which
were obtained Dec. 26, 1894.

Trimioplectus rufleeps Lee. — Four examples from rotten, red oak log, April,
1895.

Trimioplectus arcuatus Lee. — One specimen so named by Dr. Brendel.

Actium sp. — A single specimen, referred to this genus by Dr. Brendel, which was
collected in Cambria County.

Eutyphlus similis Lee. — Very abundantly obtained from under old leaves on
the Chestnut Ridge in Winter ; three to four hundred specimens.

[Thesium cavifrons Lee. — Occurs under stones, etc . April.]

Arianops amblyoponica Brend. — Although twenty specimens have been col¬
lected in four years this is a very scarce insect, found on the Chestnut Ridge.
The first pair ever seen by me walked about among ants, and one of them
escaped me in one of their galleries. Since then it has usually been found
under stones rather deeply imbedded in the ground, and apparently not in
company of ants, though always in their immediate neighborhood. The de¬
scribed type is a 9 • Found from July 20tli to October.

Batrisus schaumii Aube. — From fifteen to twenty specimens have been found
in rotten stumps during Spring.

Batrisus riparius Say. — Found with the last and in about equal number.

Batrisus scabriceps Lee. — Taken but once, three 9 and nine ^ specimens,
Dec. 26, 1894, in the same material from which Eumicrm sp. and Trimeoplectus
obsoletus were obtained.

Batrisus bistriatus Lee. — Abundant, but exclusively taken here in the nests
of Formica subsericea Say or in the mixed colonies of this ant and F. subintegra
Em. Does not occur on the Chestnut Ridge.

Batrisus frontalis Lee. — A single pair found under a log on the Chestnut Ridge,
May.

Batrisus g-lobosus Lee. — Not rare. Here it occurs in very rotten and friable
oak logs or stumps and under bark in April, and not with ants; but on the
Chestnut Ridge — during May and the Summer — I have looked for it and
found it only in the bills of Formica exsectoides Forel. ; in Cambria County it
has been taken with Formica subsericea Say on several occasions.

Batrisus punctifrons Casey. — Has not occurred here, but quite often on the
Chestnut Ridge and in Cambria County, as well as in Elk County, under
layers of old leaves and sometimes under bark or in logs. It is sometimes,
accidentally perhaps, met with in the galleries of Carnponotus pennsylvanicus
DeGcer with Ptomophagus brachyderus Lee.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

Batrisus furcatus Brend. — Found in logs or among the leaves alongside of
them ; April. May. Scarce, but ten specimens collected in four years.

Batrisus denticollis Casey. — This is abundant during Spring and Autumn
under leaves and stones in some woods, apparently preferring some localities
to others. Numerous specimens.

Batrisus virg-iniae Casey. — This ought, perhaps, not to be included in this list ;
a single specimen, now destroyed, has so been named for me.

Batrisus foveicornis Casey. — Of rare occurrence in rotten wood in Spring.

Batrisus striatus Lee. ( cepkalotes Casey) — Very rarely found here in stumps or
under old leaves.

Bryaxis. — The species of this genus are not often met with here, only from
thirty to forty individuals have been obtained in four years, the great ma¬
jority of which have been sifted from layers of dead leaves in grassy woods,
and the others were found under stones. All were taken during Spring, and
mounted, but no record was made of them. B. perforata was taken with the
sweeping net (two specimens) in a meadow on the Chestnut Ridge in May,
1894.

Bryaxis semirugosa Brend. — But two specimens have occurred to me ; it is
very coarsely punctured. [Described by Dr. Brendel in “ Entomological
News,” vol. vi, 183. The locality given by Dr. Brendel is erroneous, and
should have been western Alleglianies.]

Rybaxis conjuncta Lee. — Single specimens and pairs of this are not seldom
obtained with the sieve, or found under stones during Spring, it cannot,
however, he said to be abundant.

Decarthron abnorme Lee. — A dozen specimens have been collected at different
times with the sieve, or found attached to the lower side of stones, Spring.

Decarthron n. sp. (teste Dr. Brendel) — One pair found under a stone on the
Chestnut Ridge in October, and another pair sifted from among old leaves in
Cambria County, in Spring.

Bythinus carinatus Brend.— Abundant on the Chestnut Ridge and in Cambria
County under leaves ; Autumn, Winter and Spring. Have not met it except
on the mountains ; two hundred and fifty specimens.

Bythinus (subgenus Machserites) tychoides Brend. — One specimen sifted from
leaves on the Chestnut Ridge, in May.

Tychus minor Lee. — Var. ? three 9 and nine % specimens of this have been
collected in Spring and in Autumn from under leaves or under stones. It is
hardly LeConte’s minor. All the males have a conspicuous T-shaped tubercle
at the middle of the mesosternum.

Tychus testaceus Casey. — Two males and ten females. Found with the last,
mesosternum of male simple.

Ctenistes piceus and consobrinus Lee. — Abundantly taken under stones
with Batrisus denticollis. but especially so with the sweeping net in grassy
woods ; twenty-six males and thiity-six females, and forty other specimens
not yet separated with regard to sex. The larger individuals I mark piceus,
the smaller ones consobrinus — there does not seem to exist a structural char¬
acter by which they can be separated as two recognizable valid species. Ct.
zimmermanni. from North Carolina, has the palpal appendages distinctly sepa¬
rated from, and articulating with, the globose portiou of the palpal joints.

Ceophyllus monilis Lee. — Found, not rarely, with colonies of Lasius aphidicola
Walsh, in Spring, and sometimes in Autumn from August 10th onward.

TKANS. AM. ENT. SOC. XXII.

OCTOBER, 1895.

356

JOHN HAMILTON, M. D.

[Tmesiphorus costalis Lee. — Only two examples.]

Tmesiphorus carinatus Say. — One female found under bark in Spring,

[Cedius ziegderi Lee. — A few examples onee.]

Cedius spinosus Lee. — In very rotten stumps during Spring and Fall. Teu
specimens have been found. This may not be LeConte’s spinosus ; its first
dorsal segment of the abdomen has short, yet quite distiuct ear in a;, which
are, in some specimens, even almost half as long as the segment. Long. 1.8
mm. -1.9 mm.

Tyrus humeralis Aube. — Not often found under bark or sifted from leaves.

Adranes ccecus Lee. — Has occurred but once with me in a colony of Lanins
aphidicola early in April. Five specimens.

STAPHYLINIDiE.

Falagria cingulata and F. dissecta occur in March and April on the underside
of stones on grassy slopes. An undescribed species resembling cingulata is
found about old stumps.

Hoplandria lateralis is abundant in decaying vegetable substances; an unde¬
scribed species, received also from Ohio and Kansas, is found under stones
along streams feeding on dead animal substances. Length .10-.12 inch,
brown, basal half of elytra and abdomen, except segments 5 and 6, yellowish.

Homalota 3-maculata feeds on various fungi ; ambigua, October and November,
in decaying fungi : Amischa analis and Colpodota lividipennis mostly under
bark; Homalota pedicularis, October, in dry, old cow droppings; an elongate,
very depressed form with sculptured thorax is abundant under bark of
robinise ; a minute, depressed, elongated species .07 inch, long, with impressed
thorax line3 under the outside bark of pine and feeds on the dry resin ;
several species were not collected.

Lomechusa cava occurred once, but frequently at St. Vincent with ants.

Tachyusa cavicollis, gracillima, both about swamps.

Myrmedonia schmitti, with ants, St. Vincent, not common ; nulls, one example.

Aleochara lata and bimaculata, common ; brachypterus, not frequent; nitida ,
common; the larvse are parasitic in dipterous larvae living in droppings of
cattle, and the beetles develop in their pupariums : two small species unde¬
termined.

Oxypoda sagulata, decaying vegetable matter.

Bolitochara picta, blanchardi (“Can. Ent.” vol. xxv, p. 276), abundant.

Gyrophaena. — All the species abound in mushrooms.

Dinopsis americana. — Very wet places, common.

Acylophorus. — Both species are common in wet places.

Heterothops fumigatus. — Under rubbish, etc., in damp places.

Quedius fulgidus. — Two varieties, one piceous, the other with rufous elytra ;
not rare; peregrinus is arboreal in habitat; the other species occur under
rubbish or the bark of trees, not rare.

Listotrophus capitatus. — One example, St, Vincent.

Staphylinus badipes. — Not common; vulpinus, rare; maculosus and cinnumop-
terus, common; mysticus and comes occur rarely in fungus; violaceus, not rare
under bark.

Ocypus ater. — Not common under stones, etc.

Belonuchus formosus. — lu mushrooms, etc.

OLEOPTERA OP SOUTHWESTERN PENNSYLVANIA.

357

Philonthus politus and asper. — Both abundant, occur together, and require
care to separate; furvus, rare ; Isetulus Say, common in fungi ; hepaticus, rare ;
palliatus , rare ; debilis, common in fungus ; varians, thoracicus, fusiform, is and
micans are rare ; lomatus and brunneus, common ; cyanipennis and Isetulus,
common in fungi ; quediinus, one example only ; sordidus not common ; ni-
gritulus and microphthalmus, abundant in wet places ; apicalis, viridanus, of each
one example ; confertus , not rare, near streams.

Actobius cinerascens. — Not rare, near streams ; fraterculus, rare, wet places ;
sobrinus , abundant in wet places ; parens, rare, under bark ; psederoides, com¬
mon about streams ; jocosus, rare, in wet places.

Xantholinus fulgidus. — Three examples : the other species are common.

Leptacinus longicollis. — Not common, under bark.

Baptolinus longiceps. — Bare under bark here and among the mountains.

Stenus. — Besides the species listed, there are several undetermined.

Eusesthetus americanus. — Swampy places, minute.

Edapbus nitidus. — Not common, St. Vincent.

Stictocranius puncticeps. — Not rare, under leaves.

Cryptobium badium. — Not rare; bicolor , common ; pallipes and latebricola, not
rare, under bark; cribratum, wet places.

Lathrobium grande. — Under rubbish and leaves, etc., on low ground ; punc-
tulatum, not rare ; angnlare, rare, in swamps ; bicolor, not rare ; annatum, com¬
mon ; the other species are not common.

Stilicus. — The species are common, under bark, etc. ; biarmatus is frequent in
early Spring under stones, etc., on grassy hillsides.

Androchara corticina. — Common on the ground under rubbish, sometimes
under bark ; Trachysectus confluens is common under bark.

Pinophilus latipes. — Not abundant, under rubbish in damp places, under bark.

Tachinus memnonius, flavipennis, luridus, fimbrintus and pallipes, abundant in
decaying fungi and rejectamenta of herbivorous animals; repandas is rare,
in swamps ; limbatus, low grounds under rubbish : fumipennis, not uncommon,
various places ; nitiduloides, twice, gregarious like the other species.

Taohyporus nanus and nitidulus are common under stones on grassy hill¬
sides in early Spring : the other species are not uncommon.

Cilea silphoides. — Gregarious, occurred once, also at St. Vincent.

Conurus littoreus, knoxii and scriptus not common ; the other species are
abundant.

Boletobius niger is rare; the other species are fairly common, all feeding on
fungi ; var. gentilis is rare.

Bryopus rufescens. — Common under things in early Spring.

Mycetoporus humidus Say, not rare, decaying vegetation.

Olistheerus substriatus, rare, under bark.

Megalops ccelatus, rare, under bark, under small fungi.

Oxyporus. — The species all feed on fungi ; stygicus, lepidus, A-maculatus and oc
cipitalis are less common ; a hlack headed variety of ■l-maculatus occurs at St.
Vincent.

Osorius latipes, not common, here and at St. Vincent.

Bledius semiferrugineus and annularis, not common, along streams ; stabilis
common on grassy banks of streams: emarginatus excessively abundant.

Platystethus americanus, common under dung, rubbish, etc.

TRANS. AM. ENT. SOC. XXII.

OCTOBER, 1895.

358

JOHN HAMILTON, M. D.

Oxytelus rugosus, rare ; pennsylvanicus, insignitus, exiguus and suspectus common ;
placusinus, with ants, St. Vincent.

Trogophlceus. — All the species are common about streams and ponds.

Apocellus splmericollis and bicolor rare.

Thinobius sp. .02 long, not uncommon, muddy swamps.

Geodromicus plagiatus, common ; strictm less common, both in wet rocky
places ; between the layers of stone, etc.

Lesteva pallipes, common along streams.

Acidota subcarinata, common here ; St. Vincent.

Arpedium anguiare, not common ; cribratum , St. Vincent.

Trigonodemus striatus, not rare in decaying fungus, November.

Larithmeeum sordidum, rare, under leaves.

Olophrum obtectum, common, wet grassy places.

Homalium foraminosum, St. Vincent; humeromm, rare; punctiventre, common
on cratsegus blossoms; rufipes, not common ; flavidum, St. Vincent.

Anthobium couvexum, common on blossoms; hornii, not uncommon. I take
it likewise in Florida. Length .04 -.05 inch.

Protinus atomarius, not rare, under bark.

Lispinus tenellus, St. Vincent, not common.

Glyptoma costale, under bark, common.

Triga picipennis, not rare.

Eleusis pallida, in colonies under hark, not common ; nigrella, two examples
under bark in a mountainous place.

Siagonum americanum and punctatum not common.

TRICHOPTERYGIPJE and SCAPHIDIID^E.

Many species of these families have not been collected. Limulodes paradoxus is
frequent at St. Vincent with ants.

PHALACRID^E.

Phalacrus politus, breeds in corn ergot.

Olibrus pallipes and semistriatus on bloom of Solidago, etc.

Stilbus apicalis and nitidus under rubbish.

CORYLOPHID.<E.

Saucium fasciatum, lunatum, under the epiderm of bark in early Spring;
the species of the other genera were not common, occurring mostly under
things.

COCCINELLID^l.

Hippodamia 15-maculata and 13-punctata, less common.

Coccinella afflnis, rare.

Mysia pullata, not common.

Exochomus marginipennis, on pine and spruce.

Cryptognatha pusilla, common on walnut and hickory.

Brachyacantha 4-punctata, not common.

Hyperaspis fimbriolata, not rare; discreta rare; the other species are common.
Scymnus. — The species are common.

OLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

359

ENDOMYCHIDiE.

Symbiotes ulbei and minor, in humous wood, under bark, and by sweeping,
both scarce.

Myceteea hirta, not common.

Rhanis unioolor, in old wood, common.

Phymaphora pulchella, in wood and bark, less common.

Lycoperdina ferruginea, breeds in puff balls on logs.

Mycetina testacea, St. Vincent.

EROTYLlDiE.

Languria bicolor and lecontei are not common.

Plceosoma punctatum, under bark on trees, May.

Dacne 4-maculata, under bark, etc., not rare.

Megalodacne fasciata, rather rare.

Ischyrus 4-punctatus, in boletus, not common.

Micotretus sanguinipennis and pulcbra, not rare.

Tritoma mimetica and angularis and the black variety of humeralis are not
common, the other species are abundant, all in mushrooms.

COLYDIIDiE.

Synchita fuliginosa, under bark, March ; parvula , rare.

Cicones marginalis, rare, under bark.

Ditoma and coxelus, not common, under bark.

Aulonium parallelopipedum, not rare.

Colydium lineola, not common, bores in trees.

Penthelispa baematodes, four examples ; reflexa, St. Vincent.

Pycnomerus sulcicollis, St. Vincent.

Bothrideres geminatus, not common, under bark.

Mychocerus depressus, found once in numbers on small white mould or
fungus under bark ; resembles a Histeride.

RHYSODIDAE.

Rhysodes exaratus, under bark, not common.

Clinidium sculptile, breeds in rotting wood.

CUCUJIDJE.

Silvanus surinamensis, common in stones ; the other species are common under
bark, advena likewise occurring in merchandise.

Nausibius clavicornis, not common, in houses or under bark.

Pediacus depressus, under bark, not common.

Cucujus clavipes, under bark of many species of trees.

Lsemophlceus biguttatus, fasciatus and testaceus, common under the
epiderm of bark, etc. ; adustus rare under bark ; convex id us and rotundicollis,
rare, under leaves.

Dendropbagus cygnsei, under bark in mountainous places, rare.

Brontes dubius, common : debilis, rare.

TRANS. AM. ENT. SOC. XXII.

OCTOBER, 1895.

360

JOHN HAMILTON, M. D.

CRYPTOPHAGIDH3.

Telmatophilus americanus, not rare, under bark.

Loberus impressus, not rare, under bark.

Tomarus pulchellus, on the ground under things, April.

Antherophagus ochraceus, on flowers.

Cryptophagus. — The species are not rare on cryptogams and fungi; several
others were not collected.

Caenoscelis ferruginea, not rare.

Atomaria ochracea, not common ; ephipjnata, common on the ground among
herbage.

MYCETOPHAGIDiE.

Mycetophagus.- — The species are common, except obsoletus.

Triphyllus humeralis, in fungus; Typhxa fumata in granaries, etc., and the
species of Litargus. except nebulosus, in fungus and by beating, are common.

Diploccelus brunneus, under bark, not common.

DERMESTIDH3.

Byturus unicolor, on flowers; all the species of Dermestes are common except
pulchra, of which an example occurred here and one at St. Vincent ; rattus,
a very small var. of caninus, was only taken in early Spring on dead snakes
impaled on thorns by butcher birds the previous Autumn.

Attagenus piceus, in houses, on flowers, etc. ; pellio, only two examples.

Dearthrus longulus and Cryptorhopalum triste, occasional on flowers
and by beating.

HISTERIDiE.

Hololepta lucida and fossularis, under elm and locust bark.

Hister planipes, six examples once with ants, April ; harrini, one example :
merdarius, not common ; interruptm, marginicollis and cognatus not rare ; fcedatus,
abbreviatus, depurator, furtivus, sexdecimstriatus and americanus are very com¬
mon ; drills occurs under bark mostly, and is rare here, but more common
near the mountains ; servus, rather rare ; bimaculatus , three examples ; subro-
tundus and vernus common under stones, April ; carolinus and lecontei. common
under bark ; parallelus and coarctus , common under pine bark ; basalis, St.
Vincent.

Epierus pulicarius, not rare.

Tribalus americanus, not common.

HetEerius brunnipennis, not common, with ants, April.

Onthophilus alternatus, rare, here and St. Vincent; var. nodatus, three ex¬
amples in dried human fteces.

Dendrophilus punctulatus, not common, under bark.

Paromalus sequalis, estriatus and bistriatus, common under bark ; con-
junctus , not common, under sterc. bovin. ; semvnulum , when found, abundant.

Carcinops 14-striatus, occasional about decomposing animal and vegetable
matter.

Saprinus rotundatus, not common, here and St. Vincent; assimilis, common;
fraternus, common, sandy shores; fitchii, not common, sandy places.

Plegaderus transversus, not rare, under bark.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

361

Teretrius americanus, not common, under bark.

Bacanius tantillus, not rare, under bark.

Acritus exiguus, common, under bark of locust.

Aeletes politus and simplex, not common, under bark.

NITIDULIDiE.

Brachypterus urticse, common on bloom of Urtica.

Cercus abdominalis, common on blossoms; pennatus, on Sambucus rubens,
April.

Carpophilus hemipterus, common in foreign fruits; the other species ax-e not
rare, at sap, April, and on blossoms.

Colastus morio, rare; unicolor, rai-e; semitectus not rax-e, April, at sap; trun-
catus, common, on flowers.

Epursea helvola and rufa, common in fungus ; erichsoni and avara, less com¬
mon ; rufida, common, by beating dead leaves, etc. ; labilis, common on flowers ;
truncatella in fungus, Alleghanies.

Nitidula bipunctata, about cured meat; rufipes , not rare by beating; ziczac,
mostly on dead bix-ds, etc., not common.

Stelidota geminata, very common in i-otting fruit, etc. ; octomaculata, common
under stones, etc.

Prometopia 6-maculata, not rare, under bark.

Soronia undulata, two examples, in a swamp ; substriata , two examples under
maple bark, May.

Perthalycra murrayi, one example.

Pocadius belvolus, common in gi-owing puff balls, August.

Meligethes mutatus, very common on Urtica, etc., June.

Oxycnemus histrina, not rare, in putrid fungus, September.

Ampbicrossus ciliatus, not rare, at putrid sap, April.

Cychramus adustus, not common, by beating.

Cryptarcha ampla, common; concinna, less common.

Ips obtusus, rare, here and at St. Vincent ; sanguinolentus common, aud con¬
fluent us less common, both at sap, April.

Rhizophagus cylindricus, bipunctatus and remotus common under the
epiderm and about bark ; minutus var. frequent at sap in April ; this may
really be an undescribed species with an obscure rufous vitta on each elytron,
likewise occurring in New York and in North Carolina.

LATRIDIID^l.

Stephostethus liratus, common by beating.

Latridius minutus, common under bark, Apx-il to May ; opaculus, not common ;
filiformis, occasional in the debris of imported i-aisins, etc.

Corticaria elongata, not common, by beating ; cavicollis and distinguenda, com¬
mon, by beating; picta, common, by beating grass in wet places.

TROGOSITIDiE.

Nemosoma oylindricum, rare, in dead ti-ees.

Alindria cylindrica, common, boring dead trees.

Tenebrioides mauritanicus, common in gi-anaries ; corticalis, common ; var.
dubius not common ; americanus, common under bark ; nanus, not common ;
bimaculatus, rare here ; more common at St. Vincent.

TRANS. AM. ENT. SOC. XXII.

(46)

NOVEMBER, 1895.

362

JOHN HAMILTON, M. D.

Ostoma ferrugineum, not rare, Alleglianies.

Thymalus fulgidus, rare here and at St. Vincent.

Grynocharis, not rare, about trees with rough hark.

MONOTOMIDiE.

Monotoma, the species are rare, by sweeping.

Europs pallipennis, not common, sappy stumps, April.

Bactridium ephippigerum, common under the epiderm of bark ; striolatum,
less common ; cavicolle, rare, at sap, April to May.

DEROTONTIDiE.

Derodontus maculatus, gregarious, not common, under bark of standing trees,
September to December.

BYRRHID.E.

Nosodendron unicolor, two examples here, others near St. Vincent; Byrrhus
geminatus and murinus, both rare, St. Vincent ; Limnichus punctatus, St. Viucent.

PARNIDJE.

Psephenus lecontei, abundant at St. Vincent; Dryops lithophilm, fastigiatus,
both common in rocky creeks ; elmis, 4-notatus, divergens ; Stenelmis crenatus ,
vitiipennis ; Macronychns glabratus and Ancyronyx variegatus; all the above
occur here and at St. Vincent.

HETEROCERIDjE.

Heterocerus. — All the species are common except schwarzi, which occurs on the
banks of muddy ditches.

DASCYLL1DJE.

Eurypogon niger and Anchytarsus bicolor, both rare; Ptylodactyla serri-
collis, common at lights and near water ; Eucinetus tent ace us and morio, rare in
rotten wood under bark ; Ectropia nervosa , not rare, June, by beating along
streams ; Prionocyphon discoideus, not common, by beating ; limbatus, three
examples : Helodes pulchella, not common , thoracica , not rare, on spruce, June ;
Seirtes orbiculatus var. centralis, rare, by sweeping; Cyphon ruficollis and obscu-
rus, are common ; collaris, rare ; variabilis. and an undescribed species, not
rare ; all the above by beating bushes and weeds near marshy places.

RHIPICERIDiE.

Zenoa picea and Sandalus petrophya, both rare.

ELATERID^E.

Tharops ruflcornis, common June, about beech logs.

Deltometopus amoenicornis, common, by beating: rufipes, one example.

Dromseolus barringftoni and striatus, rare; cylindricollis, less rare.

Fornax. — All the species are rare except orchesides, which is not common.

Microrrhagus pectinatus, rare; triangularis, rare here and St. Vincent.

Eucnemide sp. or n. s. — Three examples, .16 inch. Jeannette.

Entomophthalmus rufiolus, rare, by heating.

Nematodes atropos and penetrans, not common.

Phlegon heterocerus, rare.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

363

Cerophytum pulsabor, one example.

Perothops mucida, not common.

Adelocera impressicollis and discoidea, common about old logs, etc.; mar-
morata and obtecta, not rare under bark on trees ; avita, six examples, under
bark on oak.

Cardiophorus cardisce, not rare; convexus. common fields and hedges: gagates
and convexulus, not rare, by beating.

Horistonotus curiatus, not rare, by beating.

Cryptohypnus abbreviatus, not rare, by beating.

Hypnoidus striatulus, two examples under a stone; obliquafitlus, common,
April, under stones.

Oedostethus femoralis, common on willow, June.

Monocrepidus lividus, common on walnut and hickory; vespertinus, not rare;
auritus, not common, under stones; bellus, rare.

Dicrepidus palmatus, not common here, St. Vincent.

Elater. — The species are common except mixtus, rare here and St. Vincent; dis-
coideus and vitiosus, of each three examples, also at St. Vincent ; sayi, rare ;
socer, not common, May; inilitaris, not common, with linteus ; luctuosus, not
common ; nigricans, not rare ; rubricus , collaris and xanthornus, not common :
apicatus var. phoenicopterus, occurred at St. Vincent; pusio, not rare, on Ampe-
lopsis in May. Most of the species are obtained by beating and on blossoms.

Drasterius elegans, not rare, under rubbish.

Megapenthes limbalis, not common, by beating.

Ludius attenuatus, not rare, under bark ; abruptus, five examples.

Agriotes mancus, rare ; the other species are common.

Betarmon bigeminatus, common on spruce, etc., June.

Melanotus. — The species are common, except corticinus, decumanus, angustatus,
trapezoideus and castanipes, none of which are abundant ; pertinax and gra-
datus are not common.

Limonius auripilis, not rare ; aurifer, rare ; griseus is common on weeds on low
ground ; inter stitialis, rare ; plebejus and quercinus very common ; confusus and
basillaris, not common; agonus, common on Ambrosia trifida May to June;
ornatipennis. one example; definitus, nimbatus, both rare here at St. Vincent,
extending to North Carolina.

Campylus denticornis, on weeds in wet ground, not rare : productus occurred
at St. Vincent.

Athous brightwelli, common on walnut and hickory ; acanthus, common on
bushes, etc., on low ground ; var. maculicollis, rare; cucullatus, less abundant;
scapularis, six examples ; equestris, th ree examples.

Leptoschema discalceatum, occurred at St. Vincent.

Osieodes tenuicollis, not common, by beating.

Sericosomus viridianus, not rare, on spruce, June ; silaceus abundant on blos¬
soms, May to July.

Corymbites cylindriformis, common under stones and in grass; rufipes and
tarsalis, not common ; pyrrhos, not rare, on walnut and hickory; elongaticollis,
not rare; sulcicollis, common in dry rotten stumps; xthiops, not common, by
beating Ampelopsis ; hamatus, not common, on oak and maple, June; hiero-
glyphicus and inflatus, common ; rotundicollis, five examples by beating Ampe¬
lopsis.

TEANS. AM. ENT. SOC. XXII.

NOVEMBER. 1895.

364

JOHN HAMILTON, M. D.

Asaphes indistinctus, decoloratus and var. sereus, are all rare here ; the
other two species are common under stones, etc.

Cebrio bicolor, two examples here, also St. Vincent.

THROSCIDJE.

Drapetes geminatus, six examples.

Throscus constrictor, common, by beating; chevrolati, common, on Ampelopsis '

BUPRESTIDiE .

Chalcophora virginiensis, not common ; fortis, three examples ; campestris ,
not rare, breeds in beech, maple, etc.

Dicerca divaricata, common, breeds in beech, maple, etc.; pugionata, common,
breeds in Spiraea opulifolia; lurida, common, breeds in hickory; lepida, two
examples ; spreta and tuberculata, not common.

Poecilonota cyanipennis, rare.

Buprestis rufipes, not common, breeds in beech ; fasciata and striata common,
brought here in pine timber ; ultramarina, three examples.

Melanopbila acuminata, not rare ; fulvoguttata, three examples.

Anthaxia viridifrons, viridicornis and quercata, common ; cyanella, not
rare ; flavimana, St. Vincent.

Chrysobothris femorata, common, breeds in hickory, oak, chestnut, etc. ;
floricola, common in pine timber; trinervia, not common; sexsignata, common,
breeds in hickory.

Acmaeodera pulchella, common on flowers of Radbeckia hirta, etc. ; culta, not
common, by heating.

Ptosima gibbicollis, common, breeds in Cercis canadensis.

Eupristocerus cogitans, not common.

Agrilus ruflcollis, common, breeds in rubus, ribes, etc.; otiosus , common, breeds
in hickory, oak, etc. ; arcuatus, common ; var. coryli, common on hazel ; vit-
tatocollis, rare, on Kalmia and chestnut ; bilineatus, common, breeds in oak ;
granulatus and acutipennis, not rare; politus, common, on Salix obtusifolia,
June ; fallax, not rare ; obsoletoguttat.us , subcinctus and lecontei are not common,
by beating ; egenus, breeds in Robinia, common.

Taphrocerus gracilis, common, by sweeping in swampy places.

Brachys ovata, common on oak : aeruginosa, common on hickory, elm, etc. ;
tessellata and aeruginosa are not common.

Pachyscelis lsevigatus, common.

LAMPYRIDiE.

Rhyncheros sanguinipennis, St. Vincent.

Calopteron terminale, common; reticulatum, more common.

Celetes basalis, ceenia, dimidi at a and Lopheros fraternus, rare.

Eros tboracicus, rare ; aurora, not rare, under bark, etc. ; scidptilis and triline-
atus, rare.

Plateros modestus and canaliculatus, not rare.

Calochromus perfacetus, rare.

Lucidota atra and punctata, common.

Ellychnia corusca and var. common about trees, etc.

Pyropyga nigricans and decipiens, common ; fenestralis, not common here,
but more so towards the mountains.

COLEOrTERA OF SOUTHWESTERN PENNSYLVANIA.

365

Pyractomena lucifera, not rare ; borealis, more rare.

Photinus marginellus and castus, common ; scintillans, not rare; pyralis , rare.
Photurus pennsylvanicus, common on low ground.

Phengodes plumosa, rare, Jeannette.

Chauliognathus pennsylvanicus, everywhere ; marginatus, abundant in lo¬
calities, especially toward the mountains.

Podabrus. — The species are common, except diadema, rare ; cinctipennis, lim-
bellus and punctatus, not rare ; pattoni common near water.

Silis percomis, not rare, April to May.

Telephorus. — All the species are common and abundant.

Polemius laticornis, common.

Ditemnus bidentatus, not common.

Trypherus latipennis, not rare, weeds on low ground.

Malthinus atripennis, not rare.

Maltbodes. — The species are common.

The Lampyridse have not been carefully collected.

MALACHIDjE.

Callops 4-maculatus, not common.

Anthocomus erichsoni, common; fulvilabris, rare.

Pseudebeeus apicalis and bicolor, not common ; oblitus, common.

Attalus terminalis, common ; otiosus, rare ; scincetus, not rare.

CLERIDiE.

Elasmocerus terminatus, bred abundantly from grape vines, where it is para¬
sitic on the larvae of Phymatodes amcenus.

Cymatodera bicolor and undulata, common by beating Vitis and Ampelopsis ;

inornaia, obtained from hickory limbs, having been parasite on larvae therein.
Procera castanea, eight examples once under bark.

Trichodes apivorus, rare here and at Jeannette.

Clerus 4-signatus, two examples; 4 -guttatus var. nigripes not common ; lunatus,
Jeannette, rare : thoracicus, not rare.

Thanasimus dubius and trifasciatus, rare at St. Vincent.

Thaneroclerus sanguineus, about old trees, April to August.

Hydnocera. — The species are common by beating, except longicollis.
Pbyllobsenus dislocatus and Ichnea laticornis, not rare.

Chariessa pilosa and var. common, breeds in hickory.

Cregya vetusta, rare ; oculata , not rare.

Ortbopleura damicornis, not rare.

PTINIDJE.

Ptinus brunneus and quadrimaculatus, of each two examples by beating ;

fur, several examples in a stable.

Eucrada humeralis, three examples, June.

Oligomerus sericans, rare ; alternans, one example.

Hadrobregmus errans, common; carinatus, one example; pumilus , two exam¬
ples bred from hickory limbs.

Trichodesma gibbosa, not rare, on elm sprouts.

Trypopitys sericeus, not rare.

Petalium bistriatum, not common, by beating.

TRANS. AM. ENT. SOC. XXII.

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JOHN HAMILTON, M. D.

Theca profunda, three examples.

Eupactus nitidus, not rare, by beating.

Xyletinus peltatus, six examples bred from hickory ; lugubris, two from osage
orange.

Hemiptychus gravis, nigritulus , castaneus, not rare.

Protheca puberula, rare ; hispida, rare.

Dorcatoma setulosum, not common ; pallicorne, rare here, common. St. Vin¬
cent ; examples of two undescribed species.

Caenocara oculata, common, by beating and in old wood.

Ptilinus ruficornis, common in dead maple, beech, etc.

Endecatomus rugosus, rare, November, in oak bark.

Sinoxylon basilare, common, bred from hickory, grape, etc. ; bidentatum, rare.
Bostrichus bicornis, common, bred from hickory; truncaticollis , rare.
Dinoderus punctatus, not rare ; densus, rare, bores into trees like Ptilinus.
Lyctus striatus, opaculus, planicollis, not common.

Trogoxylon parallelopipedum, not rare.

CUPESTIDiE.

Cupes concolor, not common ; capitata, St. Vincent.

LYMEXYLIDiE.

Lymexylon sericeum. rare, under chestnut bark.

CIODIDA3.

Cis creberrimus, not common, under bark ; fuscipes, common.

Ennearthron thoracicornis and Cerncis sallei, common.

Eurysphindus hirtus, not common, June, in fungus.

Sphindus americanus, not rare in fungus.

LUCANID^E.

Platycerus quercus, not rare under bark ; depresms , rare.

Nicagus obscurus, Lee. — Sixty examples once on a sandy shore, April.

SCARAB-EIDJE.

Canthon viridis, three examples.

Choeridium histeroides, common on old roads.

Copris Carolina, not common.

Phanaeus carnifex, abundant in localities.

Onthophagus, var. orpheus, not common.

Aphodius fossor, not yet common, in the mountains also ; putridus is rare ;
bicolor, common in some localities; terminalis is rare; rufipes occurred at
Jeannette, St. Vincent and in Somerset County ; rubripennis and oblongus are
rare (the former also at St. Vincent) ; the other species are common.
Dialytes truncatus, rare here and St. Vincent ; striatulus, common under
stercor, stones, etc. ; idkei, St. Vincent ; occurred also in northwestern Ontario.
Ataenius abditus and gracilis, common, wet, muddy places; cognatus common,
ejectamenta, etc.

Psammodius. — An example of an undescribed species, St. Vincent.
Bolboceras var. tumefactus, six examples ; lazarus, live examples.

Odontseus cornigerus, one example.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

367

Geotrupes egeriei and balyi, rare* hornii , common in stems of mushrooms,
September.

Clceotus aphodioides, common in holes in and under bark of oaks, April ;
globosus, two examples.

Trox tuberculatus, erinaceus, insularis, terrestris, scaber , all are ratber rare ;
striatus, one example ; the other species are abundant.

Hoplia trifasciata, not rare on cratsegus and apple, April, May ; trivialis, rare,
April, on plum ; mucorea and modesta, not rare, April to June on apple, pear,
cratsegus, etc., on low ground.

Dichelonycha elongata, common; subvittata common, especially on hazel ; fus-
ciila common on biennial oak ; albicollis , common on spruce.

Serica vespertina, common April; iricolor and sericea not rare, April, May;
trociformis, not common ; the species occur on hills among huckleberry more
commonly.

Diplotaxis liberta, rare, Jeannette ; frondicola not common.

Lachnosterna gibbosa, most common sp. : inversa. not uncommon ; micans,
rare ; vehemens, one example ; arcuata, not rare ; cephalica ( insperata ), common ;
dubia, not rare ; fusca, common ; barda, oue example, Chestnut Ridge, near
St. Vincent ; marginalis, not abundant ; fraterna, common ; rugosa, not rare ;
innominata, one example ; balia, common ; villifrons, not rare ; nitida, one ex¬
ample, now in Dr. Horn’s cabinet ; hirticula, common ; illicis Knock, not rare ;
crenulata, not common ; tristis, common.

Anomala marginata. rare, Jeannette ; the other species common.

Strigoderma arborcola, not common, June.

Cotalpa lanigera, not common, May.

Polymaechus brevipes, not common, mostly at light.

Chalepus trachypygus and Ligyrus relictus, not rare, along sandy shores.

Aphonus tridentatus, not common about flowers.

Xylorictes satyrus, common, July, roots of ash trees. '

Dynastes tityus.— Jeannette, several examples.

Allorhina nitida, rare, eating blackberries.

Euphoria sepulchralis, three examples.

Cremastochilus variolosus and harrisii, of each two examples; canal iculat us,
common, April, June, on wing, and all with ants.

Osmoderma eremicola, not rare ; scabra, common, breeds in beech, apple,
cherry, etc.

Gnorimus maculosus, not rare, on bloom, June.

Trichius bibens, on blackberry, June, not rare.

Valgus canaliculatus, common on blossoms; squamiger, not common; both
hibernate in colonies in old trees.

SPONDYLIDJE.

Parandra brunnea, common in rotten heart of trees.

CERAMBYCIDJE.

Orthosoma brunneum and Prionus laticornis, both common, flying at night ;
imbricornis, less common.

Tragosoma depsarium, taken at Jeannette, rare.

Sphenostethus taslei, rare.

Asemum mcestum and Criocephalus agrestis, not common.

TRANS. AM. ENT. SOC. XXII.

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368

JOHN HAMILTON, M. D.

Tetropium cinnamopterum, rare here, St. Vincent.

Smodicum cucujiforme, not common, under bark.

Physocnemum brevilineum and Rhopalopus sanguinicollis, rare here ; not rare
near the mountains ; St. Vincent.

Phymatodes variabilis, not common; amcenus, bred abundantly from grape;
dimidiatus, occasional, the larva probably imported in lumber; varius, not
common, breeds in white oak.

Merium proteus, rare.

Callidium antennatum. — Jeannette, rare; sereum, three examples.

Dryobius sexfasciatus, rare, under bark on trees.

Gracilia minuta, three examples, in a store-house.

Stromatium pubescens, one example, also at St. Vincent.

Chion cinctus and var. common, bred from hickory.

Eburia quadrig-eminata, not common.

Romaleum atomarium and rufulum, not common, at light.

Elaphidion mucronatum, not rare ; incertum, common ; villosum, abundant,
bred from hickory and oak ; unicolor , common ; cinerascem, two examples ;

Tylonotus bimaculatus, not common.

Heterachthes 4-maculatus, not rare, bred from hickory.

Obrium, not common, April to June, here and St. Vincent.

Molorchus bimaculatus, very abundant.

Callimoxys sang-uinicollis, five examples, June.

Rhopalophora longipes, not rare, on Ceanotlms, June.

Purpuricenus humeralis, one example, not rare in the mountains ; axillaris ,
not rare, by beating hickory, from which it is bred.

Batyle suturalis, not common, on Selenium, August.

Stenosphenus notatus, common, by breeding from hickory.

Cyllene pictus, common, bred from hickory, April ; robinise, common on Solidago
September, breeds in Robinia.

Plagionotus speciosus, rarely taken.

Calloides nobilis, one example, and at St. Vincent.

Arhopalus fulminans, not rare, April to May.

Xylotrecbus colonus, common, May to August ; Sagittarius and i-maculatus, of
each two examples, also at St. Vincent ; undulatus . rare ; nitidus, St. Vincent.

Neoclytus scutellaris, six examples ; luscus, not rare, by breeding from hickory,
grape, elm.

Clytanthus ruricola, common on blossoms May to June; albofasciatus, not
common, bred from hickory, two varieties.

Microclytus gazellula, rare here, common at St. Vincent.

Cyrtophorus verrucosus, common on grape.

Euderces picipes, abundant, April to August.

Distenia undata, rare.

Desmocerus palliatus, common, breeds in Sambucus.

Necydalis mellitus, not rare.

Encyclops cseruleus, common, April to May on bloom.

Rhagium inquisitor, common under pine bark, April.

Centrodera decolorata, rare, St. Vincent; picta, rare here, not rare at St. Vin¬
cent: sublineata, two examples.

Toxotus schaumii, not common, June, bred from Amelanchior ; 3-vittatus, not
common on Viburnum, June ; cylindricollis, not common ; cinnamapferus, com¬
mon on Rhus, June.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

369

Pachyta monticola, not common, local ; also St. Vincent.

Anthophilax malachiticus. not common in mountains near St. Vincent, beat
from chestnut bushes, June; attenuators, rare in Elk County.

Acmseops bivittata, abundant ; directa, common on Ceanotkus.

Gaurotes cyanipennis, common, breeds in Juglans alba : abdominalis, abundant
in one locality (north from Rosses’ grove).

Bellamira scalaris, rare, Jeannette, St. Vincent.

Strangalia bicolor, not common; the other species common.

Typocerus zebratus, rare; velutinus, common July to August; lugubris, not
common on Heracleum, etc., June.

Leptura emarginata, one example, taken by Mr. Klages ; subhamata, six ex¬
amples ;.var. elegans, St. Vincent ; lineola , common on wild bloom ; rubida, one
example; chalybsea, not rare, June; capitata . not common, wild places; nana
and var. haematites common May to June on wild bloom. Crataegus , etc. (for
this synonymy see Tr. Am. Ent. Soc. xv, 301) ; exigua, not common ; nitens,
common, breeds in white oak stumps ; cordifera, not common ; nigrella, St.
Vincent; canadensis, rare and at Jeannette, breeds in pine; vagans, not com¬
mon ; rubrica, not rare, on Comas jlorida April ; circumdata and proximo, not
common ; biforis, not common, St. Vincent ; 8 -notata and vittata, common May
to June; pubera, not common; ruficollis and spheericollis, not common here,
more so toward the mountains; vibex, not rare in wild places; aurata, not
common, wild places ; mutabilis and var., not rare in wild places and' near the
mountains.

Cyrtinus pygmseus, not rare, on bloom May.

Psenocerus supernotatus, common on grape, Ribes, etc.

Monohammus titillator, rare; laiwse probably imported in southern pine;
scutellatus, occasional ; confusor, more frequent, brought in pine logs.

Dorcaschema wildii, common on Osage orange ; alternatum, common on Osage
orange and mulberry ; nigrum, common by breeding from hickory.

Hetcemis cinerea, common, bred from Osage orange, mulberry and hickory.

Goes tigrina, one example; pulchra, not rare on hickory, July; debilis, rare;
tessellata, two examples seen ; pulverulenta, not rare, beech, wild cherry, July ;
oculata not rare, common at St. Vincent.

Plectrodera scalator, taken here by a collector.

Acanthoderes decipiens, not common ; quadrigibbus, rare here and St. Vincent.

Leptostylus aculiferus, common, breeds in apple, beech, etc. : parvus, not com¬
mon on oak ; perplexus, not common ; macula, common breeds in hickory.

Liopus variegatus and alpha, common ; punctatus, rare.

Dectes spinosus, common, breeds in Ambrosia.

Lepturges angulatus and signatus, common ; querci and facetus, common,
breed in hickory.

Hyperplatvs aspersus and maculatus, both common, by beating herbage.

Urographis fasciatus, common in oak bark.

Ecyrus dasycerus, not rare, breeds in hickory.

Eupogonius tomentosus, five examples bred from hickory ; vestitus. not com¬
mon, bred from hickory ; suharmatus, not common, bred from elm.

Oncideres cingulata, not rare, September.

Saperda calcarata, not rare, breeds in diseased Populus ; Candida, not rare ;
cretata and fayi, common in limbs of Crataegus; vestitus, not rare, on linden ;
discoidea, common on hickory and walnut, in which it breeds; tridentata,

TRANS. AM. ENT. SOC. XXII.

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NOVEMBER, 1895.

370

JOHN HAMILTON, M. D.

common on elm; lateralis, not rare on elm and hickory; puncticollis, not
common on Rhus radicans, .Tune ; concolor, common, breeds in Salix longifolia.

Obera bimaculata, three examples ; var. tripunctata and basalis, not common;
tripunctata, not rare by beating, May and June; ruficollis, rare, also at St.
Vincent.

Tetraopes canteriator. — Jeannette ; tetraophthalmus, common.

CHRYSOMELIDiE.

Donacia palmata and piscatrix, common on Nuphar ; suhtilis and seqiudis,
abundant on rushes and sedges on marshy ground ; emarginata, a few exam¬
ples with the above; jucunda, not common, on marsh grass on a hillside, not
near Nuphar, sedge nor rush.

Orsodacna atra, common on bloom, etc., April to June.

Zeugophora varians, common on Populus, June.

Syneta ferruginea, common by beating. May to July.

Lema trilineata, everywhere.

Anomcea, abundant on Robinia, etc., May.

Coscinoptera dominicana, rare.

Babia 4 -guttata, common, by beating.

Chlamys plicata, common, on huckleberry.

Exema dispar, common by beating.

Bassareus congestus rare: formosus, not common on Sambucus, June, var. sul-
furipennis occasional on Sambucus; mammifer and var. sellatus common on
walnut and hickory ; var. pretiosus, common on hickory and hazel ; var. lutei-
pennis, all females, common on hazel, June; lituratns, common by beating.

Cryptocephalus notatus and var. common on Rubus ; quadruplex, common on
elm, etc. ; guttulatus, common on white oak, etc. ; venustus and var. common
by sweeping ; var. simplex, rare ; gibbicollis, not common ; mutabilis not rare,
on hazel, viburnum, oak sprouts, etc. ; tinctus, three examples.

Pachybrachys othonus, pubescens Oliv. and picturatus , not rare, by beating and
sweeping ; trinotatus, not common ; tridens, common on Rhus radicans ; car-
bonarius, rare ; luridus and atomarius, common, by beating, etc. ; femoratm,
infauslus and hepaticus, not rare; dilatatus, not rare, by beating.

Monachus ater, saponatus, Diachus auratus and pallidicornis, all common by
beating; Triachus atomus, not rare on huckleberry, June.

Fidia longipes, abundant on grape.

Xanthonia lO-notata, common on oak ; villosula, common on oak ; a black va¬
riety occurs on hazel.

Glyptoscelis pubescens, common on spruce ; barbata, on hickory.

Graphops pubescens, common on Oenotli. bien. July; curtipennis and marcas-
situa, not rare, by sweeping and under leaves in the Fall.

Typophorus viridicyseneus, not common, July; canellus and varieties, com¬
mon ; var. aterrimus, on Stolidago ; thoracicus, by beating: quadrinotatus quad-
riguttatus and sexnotalus, on hickory, walnut, etc. ; sellatus, abundant on Hy¬
pericum prolificum. June.

Tymnes tricolor, common on chestnut, hickory, etc., June, July; violaceus,
abundant when found, on hickory sprouts, July; metasternalis , taken once
abundantly on Cratsegus, June ; greatly resembles Rhabdopterus picipes, which
is common on grape, etc.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

37 1

Nodonota tristis, common on Lespedeza, Ceanothus, etc. ; convexa, on Ambrosia
trifida. July to August; puncticollis, on wild roses, June.

Chrysodina globosa, abundant, by sweeping, June to August.

Doryphora clivicollis, common on Asclep. incarnat.

Chry somela suturalis, common on Ambrosia ; similis, less common on Ambrosia ;
prsecelsis, not rare, on Gonvolvulacese on low ground ; elegans, not rare, by sweep¬
ing on river-shore ; scalaris, not rare, on various trees ; philadelphiaca, three
examples; spine se, common on Spirsea op uli folia ; bigsbyana, on maple, willow.
Alnus , etc., river-shore.

Plaguodera viridis, rare.

Gastroidea polygoni, common on Polygonum; cyanea, abundant on Rumex ,
July.

Melasoma lapponica, common, river-shore, on willow ; scripta, less common.

Phyllodecta vulgabissima, common on Salix longifolia.

Trirliabda canadensis, common ; larva; on Soli dago.

Galerucella tuberculata, common river-shore on willow ; cavicollis, rare here,
more common near mountains, on Prunus, beneath partly black ; rufosan-
guinea, common on Azalea May, beneath all rufous; not alula, common, imago
and larva on Ambrosia, August; notata, not common ; nymphsese, common on
Nuphar, June.

Phyllobrotica limbata, not common.

Luperodes varicornis, not common ; thoracicus, not rare, on willows and plants
near water ; meraca, not rare, on wild rose, June : cyanellus, abundant on
many shrubs, easily confounded with meraca.

Phyllechthrus g-entilis, common on locust, Lespedeza. etc.

Galeruca externa, rare.

Cerotoma trifurcata, common on Lespedeza.

Bleplrarida rhois, not common, on Rhus.

Oedionychis gibbitarsis, common; thoracica and vians, rare; thyamtoides, not
common ; limbalis, var. subvittata, sexmaculata, quercata and var. common by
beating on low ground.

Homophceta lustrans, rare.

Disonycha pennsylvanica, not common ; var. pallipes, common ; caroliana,
rare ; glabrata, discoidea and triangularis, not common ; xanthomelssna, common.

Haltica chalybea, common on vitacese ; ignita and var. common, on Azalea,
Kalmia, Rosacese, etc. ; color variable.

Orthaltica copalina, abundant on Rhus.

Crepidodera rufipes, abundant on apple, locust, etc.; helxines, abundant on
apple, cherry, willow, etc., and variable in color and sculpture; atriventris,
common, by beating.

Epitrix cucumeris, abundant, polyphagous.

Mantura floridana, not rare, April to September.

Chsetocnema cribrata, rare, and at St. Vincent; subcylindrica, not rare, by
sweeping marsh grass; minuta, rare; confinis, abundant on garden weeds.

Systena hudsonias, abundant; frontalis, less abundant, on weeds; tseniata and
var. blanda, not rare, on weeds; marginalis, sometimes abundant on oak, Aug

Glyptina spuria, abundant on Monarda punctata, August.

Phyllotreta sinuata, not rare; vittata, abundant on Orucifene ; picta, common
by beating hickory sprouts, etc., July ; bipustulata, not common and at St.
Vincent.

TRANS. AM. ENT. SOC. XXII.

NOVEMBER, 1895.

372

JOHN HAMILTON, M. D.

Luperaltica senilis, not rare, on various Composite, July; fuscula, x-are.

Longitarsus testaceus and melanurus, not rare.

Dibolia borealis, abundant on Plantago, in the leaves of which it breeds, ac¬
cording to Mr. Lintner.

Psylliodes punctulata, abundant on garden weeds, August.

Microrhopala porcata, not common, under stones, April.

Odontota. — The species are abundant on trees and plants.

Stenispa metallica, not rare, by sweeping marsh grass.

Physonota unipunctata, once on Monarda fistulosa abundantly.

Cassida nigripes, occasional on sweet potato; bivittata, rare, on vines of sweet
potato.

Coptocycla bicolor and signifera, abundant on C'onvolvulacese ; purpurata. not
common ; clavata, not rare on bushes.

Chelymorpha argus, abundant on Convolvulacese.

Bruchus mimus, common on plum, lornus, etc.. April to May ; discoideus, rare ;
alboscutellatus, abundant, breeds in capsules of Liulwigia alter nifolia ; calms,
rare, beat from peppermint ; obtectus, sometimes abundant in beans.

TENEBRIONIDJE.

Phellopsis obcordata, not common, in woody fungus.

Alobates pennsylvanicus, abundant under bark; barbatus, le9S common.
Iphthimus opacus, rare.

Merinus lsevis, not rare, under bark.

Upis ceramboides, rare, near Jeannette.

Haplandrus femoratus, not abundant under bark ; a ter, three examples.
Scotobates calcaratus, common, in rotting wood.

Xylopinus saperdioides, common : senescens, four examples.

Tenebrio obscurus, not rare, in damp places about stables; molitor ; the larva
is the common meal worm, often bred to feed to mocking birds ; the other
species are common under bark, etc.

Opatrinus notus, rare, breeds in old wood.

Blapstinus metallicus, common, sandy places; moestns, not common.
Tribolium terrugineum and madens, not rare.

Dioedus punctatus, not rare, in rotten wood.

Echocerus maxillosus, abundant in granaries.

Alphitobius diaperinus, not rare, in granaries.

Uloma impressa, common, in old wood, etc. ; imbellis, less common ; mentalis,
three examples ; punctulata, common in old trees.

Eutochia picea, not common, grassy places uuder things.

Ansedus brunneus, not rare, under stones, etc.

Paratenetus punctatus, abundant, by beating dead leaves on bushes : fuscus,
not rare, under bark, leaves, etc.

Diaperis maculata, abundant in fungi.

Arrhenoplita viridipennis, rare; bicornis, common.

Platydema. — All the species are common except flavipes ; picilabrum is found
about the trunks of trees, October to November; subcostatum, is not very
common.

Alphitophagus bifasciatus, common in dust of feed-stores.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

373

Hypophloeus parallelus, common, pine stumps, April ; thoracicus, not common.
Pentaphyllus pallidus, thirty examples were found at one time under bark
of Ulmus fulv. in May.

Boletophag’us corticola, abundant when found : depressus, not common,
mostly on the mountains in woody fungus.

Helops americanus, not common ; the other species common under bark, etc.
Meracantha contracta, abundant everywhere.

Strong-ylium tenuicolle, not rare, by beating.

CISTELIDJE.

Allecula. — The species are common by beating.

Hymenorus. — The species are common, except rnfipes and humeralis, rare.
Cistela brevis, not rare, by beating ; margmatn, St. Vincent, rare ; sericea, every¬
where.

Isomira 4-striata, common on spruce, huckleberry, etc.. June ; ruficollis, not
rare, on bushes in wet places, June to July.

Mycetochares. — None of the species are common or abundant.

Chromatia amcena, rare, three varieties.

Capnochroa fulig-inosa and Androchirus fuscipes, are common, by beating.

LAGRIIDiE.

Arthromacra senea and Statira g-agatina, common, by beating.

MELANDRYIDiE.

Tetratoma. — Not common in wood fungus.

Penthe. — The species are common in fungi.

Synchroa punctata, common, breeds in old wood.

Eustrophus. — All common in fungi, etc.

Holostrophus. — Not rare, in fungus and under stones.

Hallomenus scapularis, not rare, in fungi.

Orchesia castanea, common, breeds in much rotten wood.

Melandrya striata, common, about old stumps, etc.

Emmesa labiata, three examples.

Zilora hispida, rare at St. Vincent.

Spilotus 4-pustulosus, not common.

Carebara longula, not common at St. Vincent.

Mystaxis simulator, not common.

Enchodes sericea, rare at St. Vincent.

Serropalpus barbatus, rare.

Hypulus lituratus, not rare under bark, oak, willow, etc. ; vaudoueri, three
examples, under bark.

Symphora flavicollis and rugosa, common, by beating.

Scraptia sericea, not rare, by beating.

Canifa. — All the species common by beating.

Nothus varians, abundant on Cratxgus, etc., June.

PYTHIDA3.

Lecontia discicollis, Boros unicolor and Salpingus virescens, rare, in mountainous
places.

Pytho depressus, not rare at St. Vincent.

TRANS. AM. ENT. SOC. XXII.

NOVEMBER, 1895.

374

JOHN HAMILTON, M. D.

Rhinosimus viridiseneus, rare at St. Vincent.

The Pythidse seem to affect mountainous regions, and are found mostly under
bark.

CEDEMERIDiE.

Microtonus sericans, not common, in fungus under bark and by beating.

Nacerdes melanura, rare here; found on the streets, etc.

Asclera ruficollis and puncticollis, common on Cratsegus, May.

CEPHALOIDHi!.

Cephaloon lepturides, not rare, on flowers, June.

MORDELLIDiE.

Pentaria 3-fasciata, not common, by sweeping.

Anaspis nigra, abundant on Viburnum , Ceanothus, etc. ; the other species are
abundant on all kinds of blossoms. May to June.

Tomoxia bidentata, not common about old trees; linella, not common here,
more so at St. Vincent; inclusa and hilaris, rare.

Mordella melsena, one example, occurs in the mountains: scutellaris, rare;
8 -punctata and marginata, common on flowers ; served and the other species not
rare when sought for.

Mordellistena lutea, 3-fasciata, lepidula and ornata, not common, mostly by
sweeping on low grounds; scapularis , and comata, common on flowers, asters,
etc., June to August; aspersa, tosta , ustulata and nigricans, not common; gut-
tulata, pustulata and ambusta , not rare, mostly by sweeping weeds on low
ground ; unicolor, marginalis, pubescens and liturata, not rare; fuscata, common
on Ambrosia trifida ; pityptera, not common ; attenuata, rare.

ANTHICIDHL.

Eurygenius murinus, not rare ; wildii, common on Osage orange.

Corphyra canaliculata, not rare on weeds on low ground ; terminalis, abun¬
dant on blossoms; the other species are not rare, by beating.

Xylophilus. — The species are not rare by beating, except pice us, only two ex¬
amples.

Macratria confusa and murina, abundant on willow near water.

Notoxus bicolor, abundant by beating on low ground ; bifasciatus, abundant on
river-shore on herbage, willow, etc. ; monodon, abundant on ground under
things ; anchora, not common.

Tomoderus constrictus, abundant, April, under stones.

Antbicus obscurus, common on Sambncm, June ; cinctus, on the ground in al¬
luvial places; rejectns, rare, under rubbish; floralis, not rare on blossoms;
basalis, more rare; vicinus, not rare; confusus rare, on the ground under
things ; cervinus, not common ; pubescens, rare.

PYROCHROID JE.

Pyrochroa. — Not rare, by beating.

Dendroides bicolor, abundant, breeds under all bark ; concolor, common near
water by beating.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

375

MELOIDiE.

Melee. — Both species not rare.

Nemognatha nemorensis, not rare on Budbeckia.

Macrobasis unicolor, abundant on Leguminosse ; Epicauta trichrm, common on
Convolvulace.se ; vittata and lemnistica are sometimes abundant on potato ; cine-
rea , abundant on Clematis, Helianthus and sometimes on potato, etc. ; pennsyl-
vanica, abundant on Solidago, potato, etc., August to September.
Pompophoea senea, sometimes abundant on bloom of apple, pear, etc., April.

RHIPIPHORID.ZE.

Myodites fasciatus, taken once here ; Prof. Schmitt takes it abundantly near
St. Vincent, on Eupatorium perfoliatum, on or about August 10th.

RHYNCHITIDiE.

Auletes ater. not common ; Eugnamptus, both species common on walnut and
hickory.

Rhinchites bicolor, common, June, on wild rose.

Pterocolus ovatus, not rare, wild grape sprouts.

ATTELABIDJE.

Attelabus analis and bipustulatus, abundant on oak sprouts, June to July ;
rhois, common on hazel, oak sprouts, etc., July.

OTIORHYNCHID^E.

Anametis g-risea, not rare, July, on Ambros. trifid.

Phyxelis rigida, common on wet meadows.

Otiorhynchus sulcatus, two examples ; ovatus , abundant.

Cercopeus chrysorrhceus, rare here, St. Vincent.

Tanycemus confertus. common, breeds in Helianthus, etc.

Pandeletejus hilaris, abundant on white oak.

Aphrastus teeniatus, common, by sweeping on river-shore.

Polydrosus dorsalis, abundant by bush beating. May.

Scythropus elegans, mountains eastward from St. Vincent,

CURCULIONIDiE.

Sitones flavescens, common ; hispidulus has lately appeared, and is becoming
abundant.

Ithycerus noveboracensis, common on hickory, fruit trees, etc.

Apion decoloratum, not common : herculanum, occasionally abundant on Vi¬
burnum acerifolium going out of bloom, June ; nigrum, abundant on Robinia.
Phytonomus punctatus, abundant.

Listronotus. — The species are common on Sagittarise : frontalis is least common.
Macrops humilis, not rare about grass roots in wet places ; the other species
are abundant on Sagittaria.

Pissodes strobi and Hylobius pales, common on pine.

Lixus terminalis, not common ; eoncavus, common on Rumex ; museulus, common.
Dorytomus mucidus, rare ; brevicollis, abundant on willow on river-shore, June.
Erycus puncticollis not rare, breeds in swamps.

Pachyphanes amcenus, common, by beating.

TRANS. AM. ENT. SOC. XXII.

NOVEMBER, 1895.

376

JOHN HAMILTON, M. D.

Smicronyx corniculatus, abundant on Ambrosia, and is the species men¬
tioned as griseus (Can. Ent. xviii, 114) ; morio, is also abundant, and is the
tychoides mentioned 1. c. ; the other species are not uncommon.

Endalus ovalis, not rare, ou alluvial places,

Tanysphyrus lemnse, abundant on Lemna.

Otidocephalus myrmex and chevrolatii, abundant ; Isericollis, common on
hickory ; scrobicollis, not common on black oak, May ; 0. perforatus, one ex¬
ample, near St. Vincent.

Mag'dalis barbita, pandura and pallida common, and breed in white elm : olyra,
abundant, breeds in hickory ; I have seen examples of a green species taken
here on spruce.

Tachypterus quadrig-ibbus, abundant on Cratsegus.

Anthonomus profundus, not common, July; nebulosus and suturalis, common
on Cratsegus, plum, etc., April to June; sycophanta, not rare, on willow in
swamps ; Jtavicornis, not rare, on Hypericum prolif., Cornus and Cratsegus, in
valleys; corvulus, common on Vaccineum, especially stamineum, May to June:
musculus, not rare, also on Vaccineum ; signatus, abundant on Rosacese, etc. ;
scutellatus, rare, on walnut.

Anthonomopsis mixtus, common on Cratsegus.

Pseudantlionomus cratsegi, common on wild cherry, Cratsegus, etc. ; incipiens,
common on Kalmia going out of bloom, etc., June.

Elleschus scanicus, found on willow once abundantly, and mentioned as bi-
punctatus (Can. Ent. xvi, 106) ; ephippiatus, common on willow sprouts from
stumps.

Orchestes ephippiatus and niger, common on willow on river-beach ; palli-
cornis, less common ; armatus, one example, on hickory, the type, and now in
Dr. Dietz’s cabinet.

Acalyptus carpini, not rare, on bushes, May.

Prionomerus calceatus, not common.

Piazorhinus scutellaris, common by beating; pictus, not rare, on oak, etc.,
June.

Thysanocnemis. — The species are not common.

Gymnetron tetrum, abundant, breeds in mullen seed.

Miarus hispidulus, breeds in pods of Lobe!, syphilit.

Lsemosaccus plagiatus, not rare, by beating.

Conotrachelus juglandis, common on walnut and hickory ; nenuphar, abun¬
dant ; retentus and seniculus. not common ; elegans, common on hickory, on the
leaves of which the larvae live; cratsegi, abundant ou Cratsegus; posticatus,
common, bred from fruit of Cratsegus ; geminatus, not common, by beating
Ambrosia trifol. ; cribricollis, rare ; anaglypticus, common.

Rhyssematus palmacollis, not common ; lineaticollis, not rare, breeds in pods
of Asclepias; sequalis, not rare, by beating Ambrosia trifida, August.

Microhyus setiger, not common at St. Vincent.

Acales sordidus, not common here, more abundant near the mountains, The
single type of sordidus was from Texas, and differs by description so greatly
from the insects found here as to have induced me to describe it under the
name curtus. It is found under stones in April, and by beating in July.

Tyloderma foveolatum, abundant, breeds in Oenothera biennis. July to August;
fragrarise, rare ; xreum, not common.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

377

Cryptorhynchus parochus, not common, breeds in walnut; bisignatus, rare;
fallax, bred from hickory, September; ferratns, not rare by sweeping; minu-
tissimus, rare.

Piazurus. — Common by bush-beating.

Copturus quercus, common ; binotatus, less common, by beating; minutns, laie,
near Jeannette.

Acoptus suturalis, not rare.

Craponius ineequalis, rare.

Cceliodes nebulosus, common, by beating Polygonum ; jlavicaudis, abundant on
Urtica ; acephalus, abundant on Polygonum and Oenothera.

Acallodes ventricosus, not common.

Ceutorhynchus rapee, four examples; sulcipennis, not rare ; septentrionalis, not
rare, by beating.

Pelenomus sulcicollis, abundant, on Polygonum ; squamosus, not common.

Rhinoncus pyrrhopus, abundant on Polygonum; longulus, abundant on Poly¬
gonum virginianum.

Baris umbilicata, not rare, on ox-eye daisy; inter stitialis, not common ; confinis,
common.

Plesiobaris t-signum, two examples.

Onychobaris rugicollis, three examples.

Ampeloglypter ater, abundant, on Ampelopsis.

Madaris undulata, two var. common on Ampelopsis.

Pseudobaris nigrina, common.

Trichobaris 3-notata, abundant, breeds in potato.

Stethobaris tubulata, var. not rare on Cratxgus ; the var. strigapunctus is
scarcely recognizable by any preceding description. Mr. Casey places it in
Idiostethus Casey, a new genus.

Centrinus picumnus and scutellumalbum, both abundant on blossoms, June
to July.

Centrinopus alternatus, common, on Eupatorium purpur.

Nicentrus lineicollis, not rare, on Ceanothus ; decipiens, rare, by beating.

Limnobaris calva, not common, on Cratsegus, June; rectirostris, not common,
on Nuphar. June.

Balaninus. — All the species are common, and for habits see Can. Ent, xxii, et seq.
--caryse has since been bred abundantly from hickory nuts.

BRENTHIDiE.

Eupsalis minuta, abundant, under bark, oak, etc.

CALANDRIPiE.

Rhodobeenus tredecimpunctatus, common July to October.

Sphenopherus sculptilis and melanocephalus. not common ; placidus, abun¬
dant in wet meadows ; minimus, not rare, in swampy places.

Calandra oryzse and granaria, abundant.

Dryopbthorus americanus, common about wood piles.

Himatium errans and conicum, rare.

Cossonus platalea, common under white walnut bark ; the other species com
mon under oak bark.

Stenomimus pallidus, eight examples at one time in a wounded part ot a li\ ing
hickory, also near St. ^ incent.

Phlceophagus apionides, one example.

TRANS. AM. ENT. SOC. XXII. (48)

NOVEMBER, 1895.

378

JOHN HAMILTON, M. D.

SCOLYTIDiE.

Corthylus punctatissimus, not common, in maple and in huckleberry roots.

Monarthrum fasciatum, common about wood piles ; mali, breeds in oak, apple,
etc.

Gnathotrichus materiarius, not rare, pine.

Pitpophthorus sparsus, rare; puberulus, common, in pine twigs.

Hypothenemus eruditus, shells of foreign nuts ; dissimilis, not common ; three
examples found were boring into wounded wild cherry.

Xyloterus politus, not rare, bores in elm.

Xyleborus dispar, not often taken ; celsus, common, boring in hickory ; xylo-
graphus , not abundant; pubescens, common under bark of pine limbs ; cselatus,
abundant under pine bark.

Tomicus. — Common where pine grows, but only occasional here.

Micracis suturalis, breeds in hickory, locust, etc. ; rudis, two examples bred
hickory.

Scolytus quadrispinosus, common in hickory ; mutiens , three examples ; rugu-
losus , common, bores in peach, plum, etc. ; n. s. (Schwarz) bred once from
hickory limbs, greatly resembles rugulosus.

Chramesis icorise, abundant, breeds in hickory limbs.

Phlceotribus frontalis, not frequent.

Hylesinus opaculus, not rare.

Cnesinus strigicollis, not common, on Osage orange.

Dendroctonus terebrans, common in pine.

Hylastes tenuis, under pine bark, not frequent.

ANTHRIBIIDiE.

Eurymicter fasciatus, not common, by sweeping.

Hormiscus saltator, not rare, by sweeping.

Cratoparis lunatus, abundant, in dry fungus.

Brachytarsus alternatus and variegatus, common by sweeping; tomentosns,
abundant on Ambrosia artemisi folia.

ADDENDA.

Omophron tessellatum Say. — Examples occurred near St. Vincent.
Cymbiodyta rotunda Say. — Taken in the Alleghauies by Mr. Ulke.

Eutheia, n. s. — One example near St. Vincent ; a true Eutheia (Schmitt).
Ischalia costata Lee. — Several examples near St. Vincent (Schmitt).
Pomphopoea ungicularis Lee. — Several examples near St. Vincent (Schmitt).

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

379

ADDITION A L REM ARKS.

Platynus caudatus Lee. — One line example of this rare species is in my col¬
lection, taken by Mr. H. Klages near Pittsburg; its appearance is decidedly
subterranean, being of the same color as Anophthalmus tellkampfii ; the type
is described as rufopiceons, but in the present example there is only a slight
suspicion of pioeous on the head. The unique type is marked Western
States, and it also occurred to Mr. C. Dury near Cincinnati, Ohio.

Stenolophus alternans Lee. — This rare and graceful species has occurred to
me thrice, once in the bed of the Little Beaver River in southeastern Ohio,
and twice near Pittsburgh. Like its sub-congener Aepus marinus Stroem. of
Europe, it is subaquatic, living under stones, etc., in the bed of streams
partly submerged, or along their margins, having the habit of Schizogeniu
amphibius. The type was taken in Pennsylvania near Columbia, and the
species was also taken by Dr. LeConte, but further record of its occurrence
has not been observed.

Dineutes americanus Linn. — This name was substituted for assimilis Kirby
(Aube), because of the synonymy of Dr. Horn in his review of the Olivierian
species (Tr. Am. Ent. Soc. xiii, 138). Mr. Roberts, in his Monograph, page
285 of the present volume, adopts assimilis Aube. If assimilis Aube and as-
similis Kirby are identical, the latter has precedence by one year, on the
authority of the respective dates of publication.

Eleusis nigrellus Lee. — Two examples of this small species occurred here in a
mountainous place, under bark of maple ; the types were from Southern
California, and further record of occurrence has not been observed. The
Pennsylvania examples are identical with those in my collection from
Southern California. This is a long stride, but close collecting will doubt¬
lessly in time close the gap. I have Siagonium punctatum Lee. from Arizona,
and took it here at the same time with E. nigrellus. What has become of
Eleusis canadensis described by Dr. LeConte, Tr. Am. Ent. Soc. iii, 298 ?

Perthalycra murrayi Horn. — Apparently rare in the Atlantic region, there
being one example in Dr. LeConte’s collection labeled Georgia (Horn), and
an example taken here by myself. It seems common on the Pacific coast,
ranging from San Francisco northward to Oregon and western Nevada (Horn).

Leptura emarginata Fab. — Through the liberality of Prof. Schmitt examples
of this regal species are in my collection from North Carolina. An example
taken near Pittsburgh was brought me for identification, and others have
been reported. This species and gigas, from western Texas, seem closely
related — probably racial.

Leptura nana Newm. and var. hsematiles Newm. — Mr. Henshaw, in his cata¬
logue of 1895, has overlooked the most recent synonymy of this species as
established by Dr. Horn, Tr. Am. Ent. Soc. xv, 301 ; see also Can. Ent. xxi,
32 and 108 ; “ Entomologica Americana” vi, 125.

Nodonota tristis Oliv. — N. convexa Say, N. pnncticollis Say ; by perhaps an over¬
sight, convexa and puneticollis are not catalogued as species by Mr. Henshaw,
1895.

TRANS. AM. ENT. SOC. XXII.

DECEMBER, 1895.

380

JOHN HAMILTON, M. D.

Otidocephalus perforatus Horn. — Through the kindness of Prof. Schmitt an
example of this rare species is in my collection taken near St. Vincent ; there
is an example in Dr. LeConte’s collection, two in Dr. Horn’s, and it is said to
be in Mr. Ulke’s. Besides these I know of no others, except that Mr. Wick¬
ham mentions it as occurring in Iowa. Its being palid only suffused with
piceous, and entirely apterous, point strongly to a subterranean habit, prob¬
ably living on bulbous or other roots, like Cylas firmicarius does on sweet
potatoes and the roots of other Convolvulacese.

ERRATA.

Page 320, line 21 from top for helixines read helxines.

“ 322, for Drominus read Dromius.

“ 328, for saucium read sacium.

“ 328, for 15-punctata read Auatis 15-punctata.

“ 334, for Ellychina read Ellychuia.

“ 336, for LIMEXILiID.<33 read LYMEXYLIDiE.

“ 338, for molochrus read molprchus.

“ 339. for Hsetomis read Hetcemis.

“ 343. for Mordelistina read Mordellistena.

“ 346. ninth line from bottom, for .18 mm. read .18 inch.

“ 349, for avara read amara.

“ 359, tenth line from bottom, for in stones read in stores.

In closing this catalogue, which represents the principal entomo¬
logical life-work of the author, extending over a period of twenty-
three years, it becomes a pleasure to acknowledge the uniform cour¬
tesy and kindness extended by many entomological friends. Dr.
Geo. H. Horn kindly assisted and gave encouragement in the early
days of doubts, difficulties and ignorance, and to the present time in
naming species — in fact, a large proportion of the species in this list
have at one time or another passed through his hands. The Messrs.
Henry and Edward Klages, Rev. P. Jerome Schmitt and others
have allowed me the benefit of their extensive collecting, and finally
thanks are due to the American Entomological Society for its cour¬
tesy in permitting the work to appear under its prestaging auspices ;
to Mr. Paul C. Stockhausen for its elegant typography and press-
work ; and to Mr. Charles S. Blake, the learned and accomplished
entomological compositor, whose kindly supervision eliminated from
these pages the many errors and shortcomings in the manuscript.

COLEOPTERA OF SOUTHWESTERN PENNSYLVANIA.

381

INDEX TO FAMILIES.

FAMILY.

Page

Part First

Page

Part Second

ANTHICIDA3 .

343

374

ANTHRIBID.E .

346

378

ATTELABIDAC .

344

375

BRENTHIDAC .

345

376

BRUCHIDAC .

341

372

BUPRESTID.E .

334

364

BYRRHIDA3 .

332

362

CALANDRIDJE .

346

377

CARABIDAH .

321

348

CEPHALOIDA3 .

342

374

CERAMBYCIDA3 ....

337

367

CHRYSOMELID.E . . .

339

370

CICINDELLIDJE .

320

348

CIOIDA3 .

336

366

CISTELIDiE .

342

373

CLERIDA3 .

335

365

COCCINELLIDJE . . . .

328

358

COLYDIIDA3 .

329

359

CORYLOPHIDiE .

328

358

CRYPTOPHAGIDA3 . .

330

360

CUCUJIDA3 .

329

359

CUPESIDA3 .

336

366

CURCULIONIDAtl ....

344

375

DASCYLLIDAC .

332

362

DERMESTIDAC .

330

360

DERODONT1DA3 .

331

362

DYTISCID.E .

323

351

ELATERIDA3 .

332

362

ENDOMYCHIDA! ....

329

359

EROTYLID2E .

329

359

GYRINIDA3 .

324

351

HALIPLIDiE .

323

351

HETEROCERID^E. . . .

332

362

HISTERIDA3 .

330

360

HYDROPHILIDA3 ....

324

351

LAGRIIDA3 .

342

373

Page

Part First

Page

Part Second

334

364

331

361

324

352

336

366

336

366

335

365

342

373

343

375

331

362

343

374

330

360

331

361

342

374

344

375

332

362

328

358

325

353

335

365

343

374

342

373

332

362

344

375

344

375

329

359

328

358

336

366

346

378

325

352

324

352

337

367

326

356

341

372

334

364

328

358

331

361

FAMILY.

LAMPYRIDiE .

LATRIDIIDAU .

LEPTINID.E .

LUCANIDiE .

LYMEXYLIDA3 .

MALACHIDA3 .

MELANDRYIDjE ....

MELOIDA3 .

MONOTOMID.E .

MORDELLIDA3 .

MY CETOPHAGID Ai! .

NITIDULID.E .

CEDEMERIDA3 .

OTIORHYNCH1DJE . .

PARNIDA3 .

PH AL ACRID A3 .

PSELAPHIDiE .

PTINID2E .

PYROCHROID.E .

PYTHIDAC .

RHIPICERID.E .

RHIPIPHORIDA3 .

RHYNCHITIDA3 .

RHYSODID^E .

SCAPHIDIIDAD .

SCARAB.EID.E .

SCOLYTID.E .

SCYDMAHNIDA3 .

SILPHID^E .

SPONDYLID^E .

STAPHYLINIDA3 . . . .
TENEBRIONID.E . . . •

THROSCIDA3 .

TRICHOPTERYGID^E
TROGOSITIDAH .

TRANS. AM. ENT. SOC. XXII.

NOVEMBER. 1895.

INDEX

The names of new genera and of new species are followed by the name of the

Author.

PAGE.

Agapostemon sericea . 118

viridula . 118

Anac.rabro . 131, 133

ocellatus . 133

Andreua aliciae . 119

erigenise . 119

erythrogaster . 118

geranii . 119

liippotes Robertson . 120

nasonii Rob. . 120

platyparia Rob . 119

pruni . 118

pulchella . 119

serotina . 119

spiraeana Rob ■ • . . . 120

vicina . 118

Aniarophron . 18

Anthicidae . 343, 374

Anthomyiidae . 79

Anthophora ursina . 128

Anthribidse . 346, 378

Aphilanthops taurulus Cockl . 293

Aplomerus nasonii Davis . 32

Arctophila flagrans . 47

Argyrophylax sp. . 72

Arthropeas sp . 61

Atomaria humeralis Hamilton • . • • 347

Atropliarista . 72

Atrophopoda singularis . 77

Attelabidse . 344, 375

Atylotus baal Towns . 58

Augochlora fervida . 118

viridula . 118

Baccha clavata . 37

lemur . 38

sagittifera . 38

tarchetius . 38

PAGE.

Bassini, Monograph of . 17

Bassus . 18, 19, 29, 30

concinnus . 19, 20

lsetatorius . 19

orbitalis . 19, 20

pulchripes . 19, 20

scutellaris . 19, 20

sycophants . 19

terminalis . 19

Bees, new . 115

Belba . 5, 12

australis Banks . 12

minuta Banks . 12

Belvosia ferruginosa Towns . 71

Bioblapsis . 18

Blepharipeza bicolor . 70

jurinioides Towns- ■■ 71

Brachycistis perpunctatus Cockl ■ - - 291

Brenthkl* . 345, 377

Bruch id* . 341, 372

Buprestid* . 334, 364

Byrrhidse . 332, 362

Calandridse . 346, 377

Calliopsis asterias Rob . 121

compositarum . 123

labrosus Rob . 122

rudbecki* Rob . 122

rugosus Rob. . 121

Carabid* . 321, 348

Carabodes . 5, 12

apicalis Banks . 12, 13

nigra Banks . 12

oblonga Banks . 12, 13

Cephaloidse . 342, 374

Cephaloscymnus . Ill

occidental is Horn 111

ornatus Horn -111, 112

TRANS. AM. ENT. SOC. XXII.

DECEMBER, 1895.

11

INDEX.

PAGE.

Cephaloscymnus zimmermanni • . . Ill

Cephus . 5, 10

niticlus Banks . 10

punctulatus Banks . 10

Cerambycidse . 337, 367

Ceratina tejoniensis . 126

Ceria abbreviata . 54

tridens . 54

Chtetonia sp . 78

Chrysogaster nitida . 36

pulchella . 36

Chrysomelidse . 339, 370

Chrysopa coloradensis Banks . 314

Chrysops callidus . 56

costatus . 56

montanus . 57

niger . 57

vittatus . 57

Chrysotoxum derivatum . 35

laterale . 35

pubescens . 35

ventricosum . 36

Cicindelidse . 320, 348

Cioidie . 336, 366

Cistelidse . 342, 373

Cistogaster immaculata . 66

Cleridse . 335, 365

Cloroperla borealis Banks . 313

brevis Banks . 314

imbeeilla . 313

pacifica Banks . 313

signata Banks . 314

Cnepkalia sp . 73

Coccidula . 113

occidentalis Horn . 114

Cocci nellidae . 81, 328, 358

Coleoptera of S. W. Penn’a . 317

Colletes jestivalis . 116

armata . * 116

compacta . 115

distincta . 115

eulophi . 116

insequalis . 115

tboracica . 116

willistonii . 116

Colydiidse . 329, 359

Compsomyia macellaria . 78

Coniopteryx fitchi Banks . 315

Conopidse . 61

PAGE.

Conops brachyrhynchus . 61

fronto . 61

gracilis . 61

xanthopareus . 62

Corylophidse . 328, 358

Crabroninse of Bor. Amer . 129

Crabro . 131, 134

abdominalis Fox . 198, 218

aciculatus . 160, 213, 221

ad venus . 171, 215

sequalis Fox . 164, 214

argus . 165, 214, 222

armaticeps Fox . 185. 225

asperatus Fox . 199, 225

ater . 197, 218, 225

atriceps . 140, 211, 220

bellus . 137, 210, 219

bigeminus . 157, 213, 221

brunneipes . 140, 211, 220

centralis . 151, 212

chrysarginus . 155, 213, 221

cinctellus Fox . 136, 210

cinctipes . 197, 218, 225

cingularis . 177, 214, 224

cognatus Fox . 178, 216, 224

columbianus . 207

confertus Fox . 181, 217, 224

conspicuus . 171, 215

corrugatus . 141, 211, 210

cribrellifer . 168. 223

decemmaculatus- . .151, 213, 221

decorus Fox . 200, 218

denticulatus . 220

dilec.tus . 156, 213, 221

discretus Fox . 165, 214

elongatus . 208

errans Fox . 184, 217, 225

flaviclypeus Fox . 186, 217

frigidus . 203

gracilissimus . 144, 211, 220

harringtonii Fox . 195, 218

harrisii . 203

hilaris . 179, 216, 224

hispidus Fox . 192, 217

imbutus . 154, 213, 221

impressifrons . 194, 218, 225

incavus Fox . 188, 217

incertus Fox . 174, 215, 223

insolens Fox . 192, 218

INDEX.

PAGE.

Crabro interruptus .

.136,

210,

219

largior Fox .

• 161.

216,

223

latifrons Fox .

185,

217

latipes .

169,

222

lentus Fox .

190,

217

maculatus .

204

maculiclypeus Fox

.189,

218,

225

maculipennis .

180,

216,

224

medius Fox .

167.

222

minimus .

• 188,

218,

225

montanus .

- 139,

211,

219

inonticolus .

■ 163,

216

niger .

206

nigricornis .

• 195,

218,

225

nigrifrons .

145,

211,

220

nigror Fox .

• 196,

218

nitidiventris .

• 182,

216,

224

oblongus .

204

obscurus .

143,

211,

220

occidentalis Fox ■ ■

• 200.

219,

225

odyneroides .

■ 153,

213,

221

Packardii .

152,

213,

221

pallidus Fox .

■ 163,

215,

223

parvulus .

■ 142,

211.

220

paucimaculatus. . .

• 147,

211

pauper .

142

pedicellatus .

■ 201,

219,

225

pegasus .

224

pictipes Fox .

• 187,

225

pinguis Fox .

• 186,

217

planipes Fox .

. 193,

225

pleuralis Fox .

• 162,

216.

223

producticollis • • • •

■ 138,

210,

219

propinquus Fox ■ ■

• 189,

218

Provan cheri Fox •

■ 168,

215

rufi femur .

• 158,

213,

221

rufigaster .

• 202,

219,

225

rufipes .

■ 149,

212,

221

rugosopunctatus. .

207

scaber .

■ 149,

212,

221

scutellatus .

190,

217

septentrionalis . . •

205

sexmaculatus ....

• 146.

212,

220

signifer .

209

similis Fox .

217

singularis .

■ 159,

213,

222

spiniferus Fox ■ • •

• 148,

212,

221

stirpicola .

• 148,

212,

221

sulcus Fox .

■ 187,

218,

225

tarsalis Fox .

• 193,

225

iii

PAGE.

Crabro tcnuiglossus .... .176, 215, 223

tenuis Fox . 166, 215, 223

texanus • • • . 150, 212, 221

thyreophorus . 172, 214, 224

trapezoideus .

. 160, 222

trifasciatus .

■ 146, 212, 220

tumidus .

• 175, 215, 223

unicus .

. 206

ventral is Fox .

. 183, 216

vernalis .

173, 215, 224

vicinus .

. 170, 216

villosus Fox . .

. 158, 213

virgatus Fox .

Cryptognatha .

. 82

catalinse Horn . 83

pallida- • • •

. 83

pusilla • . - ■

. 83

Cryptopkagidse .

. 330, 360

Cucujidse . .

. 329, 359

. :i:k; gfifi

Ourculionidae .

. 344, 375

Cuterebra amencana .

. 64

froutinella • . •

Dascyllidse .

Dermestidge .

. 330, 360

Derodontidie. - • .

. 331, 362

Drexiidse .

. 78

Dineutes . .

. 279

americanus .

. 379

analis .

. 282, 286

angustus .

assimilis .

carolinus .

. 281, 283

discolor .

. 282, 287

eruarginatus • • •

. 281, 283

bornii Roberts. ■

. 282, 284

nigrior Roberts ■

. 282, 284

produetus Roberts ■ ■ .282, 285

serru la tus .

. 282, 286

sublineatus . . . .

- 281, 283

vittatus .

. 281, 282

Drosophila sp .

. 80

Dytiscidie .

. 323, 351

Echinomyia sp .

. 72

hgemorrhoa-

. 71

iterans .

. 71

thomsoni . . .

. 72

Echthrus adillie Davis ■ . ■

. 32

Elateridie .

. 332, 362

Endomychidie .

. 329, 359

TRANS. AM. ENT. SOC. XXII.

(49)

DECEMBER, 1895.

IV

INDEX.

PAGE.

Eleusis nigrellus . 379

Euizemum . 18, 27, 29

tibiale . 27

Entomognathus . 131, 132

texanus . 132

Epigriinyia polita . 77

Eristalis sp . 47, 40

aeneus . 47

bastard i . ., 48

brousi . 48

dimidiatus . 48

flavipes . 48

hirtus . 49

latifrons . 49

ten ax . 49

transversus . 49

tricolor . 50

vinetorum . 50

Erotylidse . 329, 359

Eumacronychia decens . 74

elita . 74

Euexesta notata . 80

Exorista theclarnm . 75

Ciastrophilus equi . 64

Gonia sagax . 72

Gymnosoma fnliginosa . 66

Gyrinidaj . 324, 351

Ilalictus fasciatus . 117

foxii Rob . 117

macoupinensis Rob . 117

nymphsearum Rob . 117

pilosus . 117

platyparius Rob . 117

stultus . 117

zephyrus . 117

Haliplidfe . 323, 351

Helophilus aureopilis Towns . 51

latifrons . 52

similis . 52

Hemyda aurata . 68

Heteroceridse . 332, 362

Histerida? . 330, 360

Hoinalium flavidum Hamilton • ■ ■ • 347

Homotropus . 18. 27, 29

albopictus . 27, 28

bicapillaris . 27, 28

decoratus . 27, 29

liumeralis . 27

•» pallipennis . 27, 28

Hoplophoridse . 16

PAGE.

Hoplophora . 16

setosa Banks . 16

sphaerula Banks . 16

Hyalomyia celes Towns . 65

Hydrophilidse . 324, 351

Hylotoma cseruleus . 309

McLeayi . 309

scapularis . 309

Hymenoptera. New . 289, 297

Hypliantrophaga sp . 75

hyphantrife . 75

Hystriohia aldi-ichi . 72

Jnrinia sp . 70

algens . 70

apicifera . 70

liystrix . 70

liagriidae . 342, 373

Lampronota angusta Davis . 30

an nu lata Davis . 31

bihreviciucta Davis . . 31

.bullata Davis . 30

nigropicta Davis . 31

pallorana Davis . 31

sexcarinata Davis. ... 30

Lampyridse . 334, 364

Lath rid id 33 . 331, 361

Lepidophorus setiger Hamilton. ■ ■ ■ 347

Leptidie . 61

Leptinidse . 324, 352

Leptura emarginata . 379

nana . 379

Leucopis bella . 80

Liodes . 5, 15

concentricus . 15

Liopsis . 18

Lonchsea orchidearum Towns . 80

Lucan id® . 336, 366

Lymexylid* . 336, 366

iflalacbidse . 335. 365

Mallota cimbiciformis . 52

Masicera sp . 75

Megachile floridana Rob . 125

6-den tata Rob . 125

Megalomus mcesta Banks . 314

Melandryidse . 342, 373

Melissodes illinoensis Rob . 126

nivea Rob . 127

pallida Rob . 127

Meloidae . 343

Meromavrus cinctus . 50

INDEX.

v

PA UK.

PAGE.

Microdon bombiformis Towns .

fuscipennis . 33

violens Towns . 34

viridis . 35

xanthopilum . 35

Milesia ornata . 54

Miltogramma cinerascens . 74

trilineata . 74

Monophadnus barda . 308

Monotomid* . 331. 302

Mordellidse . 343, 374

Muscidse . 78, 80

Mycetopbagid* . 330, 360

Mydgea sj> . 79

spermophilge Towns . 79

My obi a . 75

diadema . 76

Myopa pictipennis . 64

Myrmedonia scbmitti Hamilton ■ ■ ■ 376
Mystacella sp . 75

Bfematus corylus . 306

dorsivittatus . 303

Hudsonii maguus Dyar- 306
lateralis . 307

cardinalis .

Koebelii .

Nysson solani CocM • ■ . .

Ocyptamus dimidiatus .

fuscipennis • • - •

iris. • • .

Ocyptera euchenor .

. 39

. 39

. 248

affinis .

albomaculata • •

. 276

Aid rich i Johns ■ •

. .250, 262

am erica na .

. .250, 261

arcuata .

. 250, 255

binotata .

. -250, 251

canadensis • • •

. 277

cincta .

dissimilis .

dorsalis .

. .250, 254

emarginata • • • ■

fallax Johns • • •

. .250, 257

flava .

flavicornis .

. . .251, 269

latifasciatns . 304

luteotergum . 304

Marlattii Dyar . 305

mendicus . 302 I

pinguidorsum Dyar . 303

sirailaris . 301

tboracicus . 307

unicolor . 308

ventralis . 304 !

Nemorgea sp . 75

Neuropteroid Insects, New . 313

Nitidulidse . 331, 361

Nomad a afi'abilis . 123

americana . 125 |

articulata . 124 j

luteola . 124

luteoloidesi?o& . 124

vincta . 123

Notbochrysa virginica . 315

Nothrus . 5, 13

bipilis Banks . 14

excisus Banks . 14, 15

furcatus Banks . 14

rugulosus Banks . 14, 15

truncatus Banks . 14

Notodonta tristis . 379

flavifasciata . 275

hieroglyphica • • • -251, 267

hoodiana . 251, 266

bydroleonoides J’s 250, 261

insequalis . 250, 254

intermedia . 251

interrupta . 265

Lefebvrei . 272

limbipennis . 276

maculifrons . 277

mexicana Johns . 271

microstoma . 251, 264

nigerrima . 250, 258

nigrirostris . 250, 257

obscura . 251, 270

occipitalis Johns • • .251, 268

pilimana . 250, 263

pilosus . 250, 258

prasina . 273

pubescens . 251, 264

qnadrimaculata . 274

rubricornis . 276

rufipes . 250, 253

similis Johns . 251, 267

texasiana Johns ■ ■ .250, 259
trivittata . 250, 259

TRANS. AM. ENT. SOC. XXII.

DECEMBER, 1895.

VI

INDEX.

PAGE.

Odontomyia Truquii . 273

varipes . . 250, 252

vertebra ta . 250, 260

vicina . 276

virgo . 250, 262

viridis . 251, 270

Oedemeridae . 342, 374

(Estidae . .... 64

Olivieria sp. . 75

Oncomyia baroni . 63

loraria . 64

Oribata . 5

affinis Banks . 5, 6

arborea Banks . 5. 7

depressa Banks . 5, 6

emarginata Banks . 5, 7

hirsuta Banks . 5, 7

magna Banks . 5, 6

m testa Banks . 5, 6

pratensis Banks . • • • - 5, 6

robusta Banks . 5, 7

Oribatella Banks . 5, 8

aquatica Banks . 8, 9

armata Banks . 8, 9

bidentata Banks . 8

obesa Banks . 8. 9

4-dentata Banks . 8

signata Banks . 8, 9

Oribatidae . 5

Oribatodes Banks . 5, 10

mirabilis Banks . 10

Oribatoidea of the U. S . 1

Ormia sp . 78

Osmia albiventris . 125

bucepliala . 125

Otidocephalus perforates . 380

Otiorhynchidae . 344, 375

Oxybelus sparidens Cockl . 292

subcornutus Cockl . 293

Pachygaster pulcher . 55

Panorpa affinis Banks . .315, 316

americana . 316

canadensis Banks- ■ ■ .315, 316

confusa . 316

debilis . 316

lugubris . 316

maculosa . 316

nebulosa . 316

ru fa . 316

ufescens . 316

PAGE.

Panorpa subfurcata . 316

Panurgus? andrenoides . 121

autumnalis Roh . 121

Paragus bicolor . 36

Parnidse . 332, 362

Perdita numerata Cockl . 296

Perla trivittata Banks . 313

Perthalycra murrayi . 379

Phalac.ridae . 328. 358

Philopotamus americanus Banks- . 316

Pbotopsis belfragei . 291

nubecula . 291

pictus Cockl . 289, 291

Phthorima . 18

' Physocephala affinis . 62

castanoptera . 62

ochreiceps . 62

tibialis . 63

Pimplinas, New . 30

Platyuus caudatus . 379

Pcecilosoma inferentia . 308

Pristiphora tibialis . 301

Prometbus . 18, 21, 29

costalis . 21

elongatus . 21

ruficrus . 21

Prosopis asinimus Cockl . 299

bipes Cockl . 296, 300

modestus . 116

pygmaea . 116

subtilis Fox . 295, 296

Pselaphidse . 325, 352, 353

Pseudohystricia . 68

ambigua . 69

exilis . 69

Pseudomyothyria sp . 77

Ptinidae . 335, 365

Pyrochroidae . 343, 374

Pythidae . 342, 373

Rhingia nasica- • - . 39

Rhipiceridae . 332, 362

Rhipiphoridae . . • • -344, 375

Rhizobius . 112

debilis . 112

lophanthae . 112

Rhyacophila pacifica Banks . 316

RhysodidaJ . 329, 359

Saundersia bicolor . 69

siguifera . 70

Saw-fly Larvae . 301

INDEX.

PAGE.

Scapbidiidae . 328, 358

Scarabaeidae . 336, 362

Scolytidse- • ■ . 346, 3<8

Scopolia . . 77, 78

Scotiptera . .

Scutovertex . 5, 11

concolor Banks . H

pilosus Banks . H

Seydmaenidae . 325, 352

Scymnillus Horn . HO

aterrimus Horn . HO

Scymnus . 83, 108

abbreviatus . 98, 104

amabilis . 92, 94

americanus . 95, 97

ardeiio Horn . 98, 105

balteatus . 87, 88

bigemmeus Horn . 87, 88

bisignatus Horn . 91, 92

bivulnerus Horn . 91, 92

Brullei . 98, 101

caurinus Horn . 95, 97

cervicalis . 98, 103

cinctus . 98, 99

circumspectus Horn ■ ■ .95, 96

collaris . 98, 103

coloradensis Horn . 92. 94

coniferarum . 99, 108

debilis . 88, 91

femoralis . 88. 91

flavifrons . 91, 93

flebilis Horn . 98, 100

fraternus . 98, 101

guttulatus . 92, 95

intrusus Horn . 91, 92

lacustris . 98, 105

Liebecki Horn . 88, 89

marginicollis . 98, 104

myrmidon . 88, 89

nanus . 98, 107

nebulosus . 95

opaculus Horn . 95. 96

ornatus . 92, 94

pacificus . 98, 100

pallens . 98, 99

Phelpsii . 95, 96

punctatus . 99, 107

puncticollis . 98, 102

punctum . 98, 106

quadritaeniatus . 88, 89

PAGE.

Scymnus semiruber Horn . 98, 102

sordidus Horn . 91, 93

strabus Horn . 98, 100

tenebrosus . 98. 106

terminalis . 88, 90

utilis Horn . 98, 107

xauthaspis . 88, 90

Sericomyia militaris . 46

Setodes avara Banks . 316

Silpbidae . 324, 352

Silvius quadrivittatus . 57

Silphoplagia anomala . 72

Smilia .

coccidivora . 82

marginata . 82

misella . 82

ovalis . 82

Sphaerophoria sp . 37

Sphaerophthalmus rufosuffusa Cockl 298
scaevolella Cockl. 298
wickham i Cockl. 297

Spkeeodes arvensis . H7

Spilomyia longicornis . 54

quadrifasciata . 54

Spondylidse . 337, 36 <

Staphylinidae . 326, 356

Stenolopbus alternans . 379

Stratiomyidae . 55

Stratiomyia . 227

apicula . 231, 239

badius . 231, 243

barbata . 230

bimaculata . 231, 245

Bruneri Johns ■ ■ • • 230, 233

constans . 231. 244

constricta . 245

discalis . 231, 240

Gerstaeckeri . 231, 245

gouiphora . 247

laticeps . 230, 234

lativentris . 230, 233

maculosa . 231, 241

Meigenii . 231, 238

melanosoma . 230, 232

mutabilis . 231, 243

nevadae . 231, 237

nigrifrons . 247

norma . 231, 236

normula . 231, 235

pm gnis

246

DECEMBER, 1895.

TRANS. AM. ENT. SOC. XXII.

INDEX.

viii

PAGE.

Stratiomyia quaternaria . 231, 241

robusta . 247

senaria . 231. 237

simplex . 248

subalba . 246

unilimbata . 231, 236

Strongylogaster abuormis . 311

annulosus . 310

apicalis . 312

luctuosus . 310

pinguis . 311

soriculatus . 310

Stylogaster neglecta . 64

Syuhalonia atriventris . 126

belfragei . 126

fra ter . 126

nigripes . 126

Syritta pipiens . 54

Syrphidse . 33

Syrphoctonus . 18, 25, 29

agilis . 25

cressonii Davis. . . .25, 27
gillettii Davis ■ . ■ . - 25, 26

maculifrons . 25, 26

mellipes . 25, 26

pacificus . 25, 26

pleuralis . 25

robustus Davis . 25

Syrphus sp . 36

Tabanid® . 56

Tabanus alene Towns . 59

angustifrons Towns . 59

atratus . 60

exul . 60

punctifer . 60

Tackinid* . 65

Tachina clisiocampse . 73

sp . 73, 74

Taxonus multicolor . 309

Tenebriouid* . 341, 372

Tenthredo Cressoni . 312

Tkelaira sp . 78

Therioplectes astutus . 57

comastes . 58

zonalis . 58

Throscid* . 334, 364

Titria . 16

glabrata . 16

PAGE.

Trickopkora sp . 73

Trichopoda arcuata . 65

histrio . 65

mexicana . 65

Trichopterygidse . 328, 358

Trogositidse . 331, 361

Tropidia incana Towns . 52

quad rata . 53

Vanderwulpia atrophopodoides. • • 77

Volucella abdominalis . 39

anna . 40

apicifera Towns . 40

casta nea . 41

comstocki . 41

estebana . 41

esuriens . ’. . 41

evecta . 42

facialis . 42

fax Towns . 42

fornax . 43

haagii . 43

inops Towns . 43

isabellina . 44

lucana . 44

mellea . 44

obesa . 45

j>allens . 45

satur . 45

sodomis . 45

tolteca Towns . 45

vacua . 46

Xylonomus maud* Davis . 32

Xylota chalybea . 53

flavitibia . 53

pigra . 53

Xysta sp . 65

Zodion fulvifrous . 63

splendens . 63

Zootreplies . 18. 22, 29

antennatus Davis. . . -22, 23

cingulatus . 22, 23

frigidus . 22

ichneumon ides . 22, 23

maud® Davis . 22

montauus Davis . 22, 23

saginatus . 22. 23

scapulatus . 22

inconstans Davis . 23